21413890

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{1801}}^1$

素因数の和:1878

約数の個数: 32

約数和(自身を含む): 40869360

約数和(自身を除く): 19455470

約数列:

[1, 2, 5, 10, 29, 41, 58, 82, 145, 205, 290, 410, 1189, 1801, 2378, 3602, 5945, 9005, 11890, 18010, 52229, 73841, 104458, 147682, 261145, 369205, 522290, 738410, 2141389, 4282778, 10706945, 21413890]

約数ペア:

[(1, 21413890), (2, 10706945), (5, 4282778), (10, 2141389), (29, 738410), (41, 522290), (58, 369205), (82, 261145), (145, 147682), (205, 104458), (290, 73841), (410, 52229), (1189, 18010), (1801, 11890), (2378, 9005), (3602, 5945)]