21098156

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{18251}}^1$

素因数の和:18289

約数の個数: 18

約数和(自身を含む): 39223548

約数和(自身を除く): 18125392

約数列:

[1, 2, 4, 17, 34, 68, 289, 578, 1156, 18251, 36502, 73004, 310267, 620534, 1241068, 5274539, 10549078, 21098156]

約数ペア:

[(1, 21098156), (2, 10549078), (4, 5274539), (17, 1241068), (34, 620534), (68, 310267), (289, 73004), (578, 36502), (1156, 18251)]