21167809905

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{293}}^1\times {\mathrm{437849}}^1$

素因数の和:438161

約数の個数: 32

約数和(自身を含む): 37073635200

約数和(自身を除く): 15905825295

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 293, 879, 1465, 3223, 4395, 9669, 16115, 48345, 437849, 1313547, 2189245, 4816339, 6567735, 14449017, 24081695, 72245085, 128289757, 384869271, 641448785, 1411187327, 1924346355, 4233561981, 7055936635, 21167809905]

約数ペア:

[(1, 21167809905), (3, 7055936635), (5, 4233561981), (11, 1924346355), (15, 1411187327), (33, 641448785), (55, 384869271), (165, 128289757), (293, 72245085), (879, 24081695), (1465, 14449017), (3223, 6567735), (4395, 4816339), (9669, 2189245), (16115, 1313547), (48345, 437849)]