21357884

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{4201}}^1$

素因数の和:4277

約数の個数: 24

約数和(自身を含む): 39532416

約数和(自身を除く): 18174532

約数列:

[1, 2, 4, 31, 41, 62, 82, 124, 164, 1271, 2542, 4201, 5084, 8402, 16804, 130231, 172241, 260462, 344482, 520924, 688964, 5339471, 10678942, 21357884]

約数ペア:

[(1, 21357884), (2, 10678942), (4, 5339471), (31, 688964), (41, 520924), (62, 344482), (82, 260462), (124, 172241), (164, 130231), (1271, 16804), (2542, 8402), (4201, 5084)]