21566655

素因数分解:

$3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1$

素因数の和:178

約数の個数: 80

約数和(自身を含む): 43490304

約数和(自身を除く): 21923649

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 45, 47, 55, 81, 99, 103, 135, 141, 165, 235, 297, 309, 405, 423, 495, 515, 517, 705, 891, 927, 1133, 1269, 1485, 1545, 1551, 2115, 2585, 2781, 3399, 3807, 4455, 4635, 4653, 4841, 5665, 6345, 7755, 8343, 10197, 13905, 13959, 14523, 16995, 19035, 23265, 24205, 30591, 41715, 41877, 43569, 50985, 53251, 69795, 72615, 91773, 130707, 152955, 159753, 209385, 217845, 266255, 392121, 458865, 479259, 653535, 798765, 1437777, 1960605, 2396295, 4313331, 7188885, 21566655]

約数ペア:

[(1, 21566655), (3, 7188885), (5, 4313331), (9, 2396295), (11, 1960605), (15, 1437777), (27, 798765), (33, 653535), (45, 479259), (47, 458865), (55, 392121), (81, 266255), (99, 217845), (103, 209385), (135, 159753), (141, 152955), (165, 130707), (235, 91773), (297, 72615), (309, 69795), (405, 53251), (423, 50985), (495, 43569), (515, 41877), (517, 41715), (705, 30591), (891, 24205), (927, 23265), (1133, 19035), (1269, 16995), (1485, 14523), (1545, 13959), (1551, 13905), (2115, 10197), (2585, 8343), (2781, 7755), (3399, 6345), (3807, 5665), (4455, 4841), (4635, 4653)]