21287292

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{2237}}^1$

素因数の和:2318

約数の個数: 48

約数和(自身を含む): 54392352

約数和(自身を除く): 33105060

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 61, 78, 122, 156, 183, 244, 366, 732, 793, 1586, 2237, 2379, 3172, 4474, 4758, 6711, 8948, 9516, 13422, 26844, 29081, 58162, 87243, 116324, 136457, 174486, 272914, 348972, 409371, 545828, 818742, 1637484, 1773941, 3547882, 5321823, 7095764, 10643646, 21287292]

約数ペア:

[(1, 21287292), (2, 10643646), (3, 7095764), (4, 5321823), (6, 3547882), (12, 1773941), (13, 1637484), (26, 818742), (39, 545828), (52, 409371), (61, 348972), (78, 272914), (122, 174486), (156, 136457), (183, 116324), (244, 87243), (366, 58162), (732, 29081), (793, 26844), (1586, 13422), (2237, 9516), (2379, 8948), (3172, 6711), (4474, 4758)]