208536153

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{2477}}^1$

素因数の和:2717

約数の個数: 32

約数和(自身を含む): 336215040

約数和(自身を除く): 127678887

約数列:

[1, 3, 7, 19, 21, 57, 133, 211, 399, 633, 1477, 2477, 4009, 4431, 7431, 12027, 17339, 28063, 47063, 52017, 84189, 141189, 329441, 522647, 988323, 1567941, 3658529, 9930293, 10975587, 29790879, 69512051, 208536153]

約数ペア:

[(1, 208536153), (3, 69512051), (7, 29790879), (19, 10975587), (21, 9930293), (57, 3658529), (133, 1567941), (211, 988323), (399, 522647), (633, 329441), (1477, 141189), (2477, 84189), (4009, 52017), (4431, 47063), (7431, 28063), (12027, 17339)]