21558030

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{331}}^1$

素因数の和:521

約数の個数: 64

約数和(自身を含む): 56222208

約数和(自身を除く): 34664178

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 167, 195, 331, 334, 390, 501, 662, 835, 993, 1002, 1655, 1670, 1986, 2171, 2505, 3310, 4303, 4342, 4965, 5010, 6513, 8606, 9930, 10855, 12909, 13026, 21515, 21710, 25818, 32565, 43030, 55277, 64545, 65130, 110554, 129090, 165831, 276385, 331662, 552770, 718601, 829155, 1437202, 1658310, 2155803, 3593005, 4311606, 7186010, 10779015, 21558030]

約数ペア:

[(1, 21558030), (2, 10779015), (3, 7186010), (5, 4311606), (6, 3593005), (10, 2155803), (13, 1658310), (15, 1437202), (26, 829155), (30, 718601), (39, 552770), (65, 331662), (78, 276385), (130, 165831), (167, 129090), (195, 110554), (331, 65130), (334, 64545), (390, 55277), (501, 43030), (662, 32565), (835, 25818), (993, 21710), (1002, 21515), (1655, 13026), (1670, 12909), (1986, 10855), (2171, 9930), (2505, 8606), (3310, 6513), (4303, 5010), (4342, 4965)]