21261576

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{271}}^1\times {\mathrm{467}}^1$

素因数の和:754

約数の個数: 64

約数和(自身を含む): 61102080

約数和(自身を除く): 39840504

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 271, 467, 542, 813, 934, 1084, 1401, 1626, 1868, 1897, 2168, 2802, 3252, 3269, 3736, 3794, 5604, 5691, 6504, 6538, 7588, 9807, 11208, 11382, 13076, 15176, 19614, 22764, 26152, 39228, 45528, 78456, 126557, 253114, 379671, 506228, 759342, 885899, 1012456, 1518684, 1771798, 2657697, 3037368, 3543596, 5315394, 7087192, 10630788, 21261576]

約数ペア:

[(1, 21261576), (2, 10630788), (3, 7087192), (4, 5315394), (6, 3543596), (7, 3037368), (8, 2657697), (12, 1771798), (14, 1518684), (21, 1012456), (24, 885899), (28, 759342), (42, 506228), (56, 379671), (84, 253114), (168, 126557), (271, 78456), (467, 45528), (542, 39228), (813, 26152), (934, 22764), (1084, 19614), (1401, 15176), (1626, 13076), (1868, 11382), (1897, 11208), (2168, 9807), (2802, 7588), (3252, 6538), (3269, 6504), (3736, 5691), (3794, 5604)]