21772140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{271}}^1$

素因数の和:399

約数の個数: 96

約数和(自身を含む): 66533376

約数和(自身を除く): 44761236

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 103, 130, 156, 195, 206, 260, 271, 309, 390, 412, 515, 542, 618, 780, 813, 1030, 1084, 1236, 1339, 1355, 1545, 1626, 2060, 2678, 2710, 3090, 3252, 3523, 4017, 4065, 5356, 5420, 6180, 6695, 7046, 8034, 8130, 10569, 13390, 14092, 16068, 16260, 17615, 20085, 21138, 26780, 27913, 35230, 40170, 42276, 52845, 55826, 70460, 80340, 83739, 105690, 111652, 139565, 167478, 211380, 279130, 334956, 362869, 418695, 558260, 725738, 837390, 1088607, 1451476, 1674780, 1814345, 2177214, 3628690, 4354428, 5443035, 7257380, 10886070, 21772140]

約数ペア:

[(1, 21772140), (2, 10886070), (3, 7257380), (4, 5443035), (5, 4354428), (6, 3628690), (10, 2177214), (12, 1814345), (13, 1674780), (15, 1451476), (20, 1088607), (26, 837390), (30, 725738), (39, 558260), (52, 418695), (60, 362869), (65, 334956), (78, 279130), (103, 211380), (130, 167478), (156, 139565), (195, 111652), (206, 105690), (260, 83739), (271, 80340), (309, 70460), (390, 55826), (412, 52845), (515, 42276), (542, 40170), (618, 35230), (780, 27913), (813, 26780), (1030, 21138), (1084, 20085), (1236, 17615), (1339, 16260), (1355, 16068), (1545, 14092), (1626, 13390), (2060, 10569), (2678, 8130), (2710, 8034), (3090, 7046), (3252, 6695), (3523, 6180), (4017, 5420), (4065, 5356)]