20415249

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{47}}^1\times {\mathrm{167}}^1$

素因数の和:254

約数の個数: 36

約数和(自身を含む): 32183424

約数和(自身を除く): 11768175

約数列:

[1, 3, 9, 17, 47, 51, 141, 153, 167, 289, 423, 501, 799, 867, 1503, 2397, 2601, 2839, 7191, 7849, 8517, 13583, 23547, 25551, 40749, 48263, 70641, 122247, 133433, 144789, 400299, 434367, 1200897, 2268361, 6805083, 20415249]

約数ペア:

[(1, 20415249), (3, 6805083), (9, 2268361), (17, 1200897), (47, 434367), (51, 400299), (141, 144789), (153, 133433), (167, 122247), (289, 70641), (423, 48263), (501, 40749), (799, 25551), (867, 23547), (1503, 13583), (2397, 8517), (2601, 7849), (2839, 7191)]