21357084

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{3581}}^1$

素因数の和:3666

約数の個数: 48

約数和(自身を含む): 57770496

約数和(自身を除く): 36413412

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 71, 84, 142, 213, 284, 426, 497, 852, 994, 1491, 1988, 2982, 3581, 5964, 7162, 10743, 14324, 21486, 25067, 42972, 50134, 75201, 100268, 150402, 254251, 300804, 508502, 762753, 1017004, 1525506, 1779757, 3051012, 3559514, 5339271, 7119028, 10678542, 21357084]

約数ペア:

[(1, 21357084), (2, 10678542), (3, 7119028), (4, 5339271), (6, 3559514), (7, 3051012), (12, 1779757), (14, 1525506), (21, 1017004), (28, 762753), (42, 508502), (71, 300804), (84, 254251), (142, 150402), (213, 100268), (284, 75201), (426, 50134), (497, 42972), (852, 25067), (994, 21486), (1491, 14324), (1988, 10743), (2982, 7162), (3581, 5964)]