21150890

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{1499}}^1$

素因数の和:1606

約数の個数: 32

約数和(自身を含む): 40824000

約数和(自身を除く): 19673110

約数列:

[1, 2, 5, 10, 17, 34, 83, 85, 166, 170, 415, 830, 1411, 1499, 2822, 2998, 7055, 7495, 14110, 14990, 25483, 50966, 124417, 127415, 248834, 254830, 622085, 1244170, 2115089, 4230178, 10575445, 21150890]

約数ペア:

[(1, 21150890), (2, 10575445), (5, 4230178), (10, 2115089), (17, 1244170), (34, 622085), (83, 254830), (85, 248834), (166, 127415), (170, 124417), (415, 50966), (830, 25483), (1411, 14990), (1499, 14110), (2822, 7495), (2998, 7055)]