21890988

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{86869}}^1$

素因数の和:86886

約数の個数: 36

約数和(自身を含む): 63241360

約数和(自身を除く): 41350372

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 86869, 173738, 260607, 347476, 521214, 608083, 781821, 1042428, 1216166, 1563642, 1824249, 2432332, 3127284, 3648498, 5472747, 7296996, 10945494, 21890988]

約数ペア:

[(1, 21890988), (2, 10945494), (3, 7296996), (4, 5472747), (6, 3648498), (7, 3127284), (9, 2432332), (12, 1824249), (14, 1563642), (18, 1216166), (21, 1042428), (28, 781821), (36, 608083), (42, 521214), (63, 347476), (84, 260607), (126, 173738), (252, 86869)]