21551762024

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1\times {\mathrm{659}}^1$

素因数の和:895

約数の個数: 128

約数和(自身を含む): 45664819200

約数和(自身を除く): 24113057176

約数列:

[1, 2, 4, 8, 13, 26, 43, 52, 71, 86, 103, 104, 142, 172, 206, 284, 344, 412, 559, 568, 659, 824, 923, 1118, 1318, 1339, 1846, 2236, 2636, 2678, 3053, 3692, 4429, 4472, 5272, 5356, 6106, 7313, 7384, 8567, 8858, 10712, 12212, 14626, 17134, 17716, 24424, 28337, 29252, 34268, 35432, 39689, 46789, 56674, 57577, 58504, 67877, 68536, 79378, 93578, 95069, 113348, 115154, 135754, 158756, 187156, 190138, 226696, 230308, 271508, 314459, 317512, 368381, 374312, 380276, 460616, 543016, 608257, 628918, 736762, 760552, 882401, 1216514, 1257836, 1473524, 1764802, 2011927, 2433028, 2515672, 2918711, 2947048, 3529604, 4023854, 4087967, 4819267, 4866056, 5837422, 7059208, 8047708, 8175934, 9638534, 11674844, 16095416, 16351868, 19277068, 23349688, 26155051, 32703736, 37943243, 38554136, 52310102, 62650471, 75886486, 104620204, 125300942, 151772972, 207228481, 209240408, 250601884, 303545944, 414456962, 501203768, 828913924, 1657827848, 2693970253, 5387940506, 10775881012, 21551762024]

約数ペア:

[(1, 21551762024), (2, 10775881012), (4, 5387940506), (8, 2693970253), (13, 1657827848), (26, 828913924), (43, 501203768), (52, 414456962), (71, 303545944), (86, 250601884), (103, 209240408), (104, 207228481), (142, 151772972), (172, 125300942), (206, 104620204), (284, 75886486), (344, 62650471), (412, 52310102), (559, 38554136), (568, 37943243), (659, 32703736), (824, 26155051), (923, 23349688), (1118, 19277068), (1318, 16351868), (1339, 16095416), (1846, 11674844), (2236, 9638534), (2636, 8175934), (2678, 8047708), (3053, 7059208), (3692, 5837422), (4429, 4866056), (4472, 4819267), (5272, 4087967), (5356, 4023854), (6106, 3529604), (7313, 2947048), (7384, 2918711), (8567, 2515672), (8858, 2433028), (10712, 2011927), (12212, 1764802), (14626, 1473524), (17134, 1257836), (17716, 1216514), (24424, 882401), (28337, 760552), (29252, 736762), (34268, 628918), (35432, 608257), (39689, 543016), (46789, 460616), (56674, 380276), (57577, 374312), (58504, 368381), (67877, 317512), (68536, 314459), (79378, 271508), (93578, 230308), (95069, 226696), (113348, 190138), (115154, 187156), (135754, 158756)]