21740712

素因数分解:

$2^3\times 3^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{139}}^1$

素因数の和:188

約数の個数: 128

約数和(自身を含む): 67200000

約数和(自身を除く): 45459288

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 19, 21, 24, 28, 38, 42, 49, 56, 57, 76, 84, 98, 114, 133, 139, 147, 152, 168, 196, 228, 266, 278, 294, 343, 392, 399, 417, 456, 532, 556, 588, 686, 798, 834, 931, 973, 1029, 1064, 1112, 1176, 1372, 1596, 1668, 1862, 1946, 2058, 2641, 2744, 2793, 2919, 3192, 3336, 3724, 3892, 4116, 5282, 5586, 5838, 6517, 6811, 7448, 7784, 7923, 8232, 10564, 11172, 11676, 13034, 13622, 15846, 18487, 19551, 20433, 21128, 22344, 23352, 26068, 27244, 31692, 36974, 39102, 40866, 47677, 52136, 54488, 55461, 63384, 73948, 78204, 81732, 95354, 110922, 129409, 143031, 147896, 156408, 163464, 190708, 221844, 258818, 286062, 381416, 388227, 443688, 517636, 572124, 776454, 905863, 1035272, 1144248, 1552908, 1811726, 2717589, 3105816, 3623452, 5435178, 7246904, 10870356, 21740712]

約数ペア:

[(1, 21740712), (2, 10870356), (3, 7246904), (4, 5435178), (6, 3623452), (7, 3105816), (8, 2717589), (12, 1811726), (14, 1552908), (19, 1144248), (21, 1035272), (24, 905863), (28, 776454), (38, 572124), (42, 517636), (49, 443688), (56, 388227), (57, 381416), (76, 286062), (84, 258818), (98, 221844), (114, 190708), (133, 163464), (139, 156408), (147, 147896), (152, 143031), (168, 129409), (196, 110922), (228, 95354), (266, 81732), (278, 78204), (294, 73948), (343, 63384), (392, 55461), (399, 54488), (417, 52136), (456, 47677), (532, 40866), (556, 39102), (588, 36974), (686, 31692), (798, 27244), (834, 26068), (931, 23352), (973, 22344), (1029, 21128), (1064, 20433), (1112, 19551), (1176, 18487), (1372, 15846), (1596, 13622), (1668, 13034), (1862, 11676), (1946, 11172), (2058, 10564), (2641, 8232), (2744, 7923), (2793, 7784), (2919, 7448), (3192, 6811), (3336, 6517), (3724, 5838), (3892, 5586), (4116, 5282)]