21471268

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{967}}^1$

素因数の和:1052

約数の個数: 48

約数和(自身を含む): 47052544

約数和(自身を除く): 25581276

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 61, 91, 122, 182, 244, 364, 427, 793, 854, 967, 1586, 1708, 1934, 3172, 3868, 5551, 6769, 11102, 12571, 13538, 22204, 25142, 27076, 50284, 58987, 87997, 117974, 175994, 235948, 351988, 412909, 766831, 825818, 1533662, 1651636, 3067324, 5367817, 10735634, 21471268]

約数ペア:

[(1, 21471268), (2, 10735634), (4, 5367817), (7, 3067324), (13, 1651636), (14, 1533662), (26, 825818), (28, 766831), (52, 412909), (61, 351988), (91, 235948), (122, 175994), (182, 117974), (244, 87997), (364, 58987), (427, 50284), (793, 27076), (854, 25142), (967, 22204), (1586, 13538), (1708, 12571), (1934, 11102), (3172, 6769), (3868, 5551)]