21499410

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{5231}}^1$

素因数の和:5378

約数の個数: 32

約数和(自身を含む): 51985152

約数和(自身を除く): 30485742

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 137, 274, 411, 685, 822, 1370, 2055, 4110, 5231, 10462, 15693, 26155, 31386, 52310, 78465, 156930, 716647, 1433294, 2149941, 3583235, 4299882, 7166470, 10749705, 21499410]

約数ペア:

[(1, 21499410), (2, 10749705), (3, 7166470), (5, 4299882), (6, 3583235), (10, 2149941), (15, 1433294), (30, 716647), (137, 156930), (274, 78465), (411, 52310), (685, 31386), (822, 26155), (1370, 15693), (2055, 10462), (4110, 5231)]