20989488

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{33637}}^1$

素因数の和:33661

約数の個数: 40

約数和(自身を含む): 58395568

約数和(自身を除く): 37406080

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 156, 208, 312, 624, 33637, 67274, 100911, 134548, 201822, 269096, 403644, 437281, 538192, 807288, 874562, 1311843, 1614576, 1749124, 2623686, 3498248, 5247372, 6996496, 10494744, 20989488]

約数ペア:

[(1, 20989488), (2, 10494744), (3, 6996496), (4, 5247372), (6, 3498248), (8, 2623686), (12, 1749124), (13, 1614576), (16, 1311843), (24, 874562), (26, 807288), (39, 538192), (48, 437281), (52, 403644), (78, 269096), (104, 201822), (156, 134548), (208, 100911), (312, 67274), (624, 33637)]