21498070

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{109}}^1\times {\mathrm{163}}^1$

素因数の和:301

約数の個数: 48

約数和(自身を含む): 43187760

約数和(自身を除く): 21689690

約数列:

[1, 2, 5, 10, 11, 22, 55, 109, 110, 121, 163, 218, 242, 326, 545, 605, 815, 1090, 1199, 1210, 1630, 1793, 2398, 3586, 5995, 8965, 11990, 13189, 17767, 17930, 19723, 26378, 35534, 39446, 65945, 88835, 98615, 131890, 177670, 195437, 197230, 390874, 977185, 1954370, 2149807, 4299614, 10749035, 21498070]

約数ペア:

[(1, 21498070), (2, 10749035), (5, 4299614), (10, 2149807), (11, 1954370), (22, 977185), (55, 390874), (109, 197230), (110, 195437), (121, 177670), (163, 131890), (218, 98615), (242, 88835), (326, 65945), (545, 39446), (605, 35534), (815, 26378), (1090, 19723), (1199, 17930), (1210, 17767), (1630, 13189), (1793, 11990), (2398, 8965), (3586, 5995)]