21281302

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:157

約数の個数: 64

約数和(自身を含む): 41057280

約数和(自身を除く): 19775978

約数列:

[1, 2, 7, 14, 23, 29, 43, 46, 53, 58, 86, 106, 161, 203, 301, 322, 371, 406, 602, 667, 742, 989, 1219, 1247, 1334, 1537, 1978, 2279, 2438, 2494, 3074, 4558, 4669, 6923, 8533, 8729, 9338, 10759, 13846, 15953, 17066, 17458, 21518, 28681, 31906, 35351, 52417, 57362, 66091, 70702, 104834, 132182, 200767, 247457, 366919, 401534, 462637, 494914, 733838, 925274, 1520093, 3040186, 10640651, 21281302]

約数ペア:

[(1, 21281302), (2, 10640651), (7, 3040186), (14, 1520093), (23, 925274), (29, 733838), (43, 494914), (46, 462637), (53, 401534), (58, 366919), (86, 247457), (106, 200767), (161, 132182), (203, 104834), (301, 70702), (322, 66091), (371, 57362), (406, 52417), (602, 35351), (667, 31906), (742, 28681), (989, 21518), (1219, 17458), (1247, 17066), (1334, 15953), (1537, 13846), (1978, 10759), (2279, 9338), (2438, 8729), (2494, 8533), (3074, 6923), (4558, 4669)]