20347704

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{21739}}^1$

素因数の和:21764

約数の個数: 48

約数和(自身を含む): 59350200

約数和(自身を除く): 39002496

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 72, 78, 104, 117, 156, 234, 312, 468, 936, 21739, 43478, 65217, 86956, 130434, 173912, 195651, 260868, 282607, 391302, 521736, 565214, 782604, 847821, 1130428, 1565208, 1695642, 2260856, 2543463, 3391284, 5086926, 6782568, 10173852, 20347704]

約数ペア:

[(1, 20347704), (2, 10173852), (3, 6782568), (4, 5086926), (6, 3391284), (8, 2543463), (9, 2260856), (12, 1695642), (13, 1565208), (18, 1130428), (24, 847821), (26, 782604), (36, 565214), (39, 521736), (52, 391302), (72, 282607), (78, 260868), (104, 195651), (117, 173912), (156, 130434), (234, 86956), (312, 65217), (468, 43478), (936, 21739)]