21012238

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{347}}^1$

素因数の和:516

約数の個数: 32

約数和(自身を含む): 36306144

約数和(自身を除く): 15293906

約数列:

[1, 2, 13, 17, 26, 34, 137, 221, 274, 347, 442, 694, 1781, 2329, 3562, 4511, 4658, 5899, 9022, 11798, 30277, 47539, 60554, 76687, 95078, 153374, 618007, 808163, 1236014, 1616326, 10506119, 21012238]

約数ペア:

[(1, 21012238), (2, 10506119), (13, 1616326), (17, 1236014), (26, 808163), (34, 618007), (137, 153374), (221, 95078), (274, 76687), (347, 60554), (442, 47539), (694, 30277), (1781, 11798), (2329, 9022), (3562, 5899), (4511, 4658)]