21349688

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{179}}^1\times {\mathrm{877}}^1$

素因数の和:1079

約数の個数: 32

約数和(自身を含む): 42670800

約数和(自身を除く): 21321112

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 179, 358, 716, 877, 1432, 1754, 3043, 3508, 6086, 7016, 12172, 14909, 24344, 29818, 59636, 119272, 156983, 313966, 627932, 1255864, 2668711, 5337422, 10674844, 21349688]

約数ペア:

[(1, 21349688), (2, 10674844), (4, 5337422), (8, 2668711), (17, 1255864), (34, 627932), (68, 313966), (136, 156983), (179, 119272), (358, 59636), (716, 29818), (877, 24344), (1432, 14909), (1754, 12172), (3043, 7016), (3508, 6086)]