21177410

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{347}}^1\times {\mathrm{359}}^1$

素因数の和:730

約数の個数: 32

約数和(自身を含む): 40590720

約数和(自身を除く): 19413310

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 347, 359, 694, 718, 1735, 1795, 3470, 3590, 5899, 6103, 11798, 12206, 29495, 30515, 58990, 61030, 124573, 249146, 622865, 1245730, 2117741, 4235482, 10588705, 21177410]

約数ペア:

[(1, 21177410), (2, 10588705), (5, 4235482), (10, 2117741), (17, 1245730), (34, 622865), (85, 249146), (170, 124573), (347, 61030), (359, 58990), (694, 30515), (718, 29495), (1735, 12206), (1795, 11798), (3470, 6103), (3590, 5899)]