18803265

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{457}}^1$

素因数の和:689

約数の個数: 32

約数和(自身を含む): 32624256

約数和(自身を除く): 13820991

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 211, 457, 633, 1055, 1371, 2285, 2743, 3165, 5941, 6855, 8229, 13715, 17823, 29705, 41145, 89115, 96427, 289281, 482135, 1253551, 1446405, 3760653, 6267755, 18803265]

約数ペア:

[(1, 18803265), (3, 6267755), (5, 3760653), (13, 1446405), (15, 1253551), (39, 482135), (65, 289281), (195, 96427), (211, 89115), (457, 41145), (633, 29705), (1055, 17823), (1371, 13715), (2285, 8229), (2743, 6855), (3165, 5941)]