20998770

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2341}}^1$

素因数の和:2387

約数の個数: 64

約数和(自身を含む): 56657664

約数和(自身を除く): 35658894

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 23, 26, 30, 39, 46, 65, 69, 78, 115, 130, 138, 195, 230, 299, 345, 390, 598, 690, 897, 1495, 1794, 2341, 2990, 4485, 4682, 7023, 8970, 11705, 14046, 23410, 30433, 35115, 53843, 60866, 70230, 91299, 107686, 152165, 161529, 182598, 269215, 304330, 323058, 456495, 538430, 699959, 807645, 912990, 1399918, 1615290, 2099877, 3499795, 4199754, 6999590, 10499385, 20998770]

約数ペア:

[(1, 20998770), (2, 10499385), (3, 6999590), (5, 4199754), (6, 3499795), (10, 2099877), (13, 1615290), (15, 1399918), (23, 912990), (26, 807645), (30, 699959), (39, 538430), (46, 456495), (65, 323058), (69, 304330), (78, 269215), (115, 182598), (130, 161529), (138, 152165), (195, 107686), (230, 91299), (299, 70230), (345, 60866), (390, 53843), (598, 35115), (690, 30433), (897, 23410), (1495, 14046), (1794, 11705), (2341, 8970), (2990, 7023), (4485, 4682)]