18380241

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{113}}^1$

素因数の和:214

約数の個数: 48

約数和(自身を含む): 30730752

約数和(自身を除く): 12350511

約数列:

[1, 3, 9, 11, 31, 33, 53, 93, 99, 113, 159, 279, 339, 341, 477, 583, 1017, 1023, 1243, 1643, 1749, 3069, 3503, 3729, 4929, 5247, 5989, 10509, 11187, 14787, 17967, 18073, 31527, 38533, 53901, 54219, 65879, 115599, 162657, 185659, 197637, 346797, 556977, 592911, 1670931, 2042249, 6126747, 18380241]

約数ペア:

[(1, 18380241), (3, 6126747), (9, 2042249), (11, 1670931), (31, 592911), (33, 556977), (53, 346797), (93, 197637), (99, 185659), (113, 162657), (159, 115599), (279, 65879), (339, 54219), (341, 53901), (477, 38533), (583, 31527), (1017, 18073), (1023, 17967), (1243, 14787), (1643, 11187), (1749, 10509), (3069, 5989), (3503, 5247), (3729, 4929)]