20702916

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1427}}^1$

素因数の和:1481

約数の個数: 72

約数和(自身を含む): 58216704

約数和(自身を除く): 37513788

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 31, 36, 39, 52, 62, 78, 93, 117, 124, 156, 186, 234, 279, 372, 403, 468, 558, 806, 1116, 1209, 1427, 1612, 2418, 2854, 3627, 4281, 4836, 5708, 7254, 8562, 12843, 14508, 17124, 18551, 25686, 37102, 44237, 51372, 55653, 74204, 88474, 111306, 132711, 166959, 176948, 222612, 265422, 333918, 398133, 530844, 575081, 667836, 796266, 1150162, 1592532, 1725243, 2300324, 3450486, 5175729, 6900972, 10351458, 20702916]

約数ペア:

[(1, 20702916), (2, 10351458), (3, 6900972), (4, 5175729), (6, 3450486), (9, 2300324), (12, 1725243), (13, 1592532), (18, 1150162), (26, 796266), (31, 667836), (36, 575081), (39, 530844), (52, 398133), (62, 333918), (78, 265422), (93, 222612), (117, 176948), (124, 166959), (156, 132711), (186, 111306), (234, 88474), (279, 74204), (372, 55653), (403, 51372), (468, 44237), (558, 37102), (806, 25686), (1116, 18551), (1209, 17124), (1427, 14508), (1612, 12843), (2418, 8562), (2854, 7254), (3627, 5708), (4281, 4836)]