18953385

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{233}}^1$

素因数の和:298

約数の個数: 64

約数和(自身を含む): 36391680

約数和(自身を除く): 17438295

約数列:

[1, 3, 5, 11, 15, 17, 29, 33, 51, 55, 85, 87, 145, 165, 187, 233, 255, 319, 435, 493, 561, 699, 935, 957, 1165, 1479, 1595, 2465, 2563, 2805, 3495, 3961, 4785, 5423, 6757, 7395, 7689, 11883, 12815, 16269, 19805, 20271, 27115, 33785, 38445, 43571, 59415, 74327, 81345, 101355, 114869, 130713, 217855, 222981, 344607, 371635, 574345, 653565, 1114905, 1263559, 1723035, 3790677, 6317795, 18953385]

約数ペア:

[(1, 18953385), (3, 6317795), (5, 3790677), (11, 1723035), (15, 1263559), (17, 1114905), (29, 653565), (33, 574345), (51, 371635), (55, 344607), (85, 222981), (87, 217855), (145, 130713), (165, 114869), (187, 101355), (233, 81345), (255, 74327), (319, 59415), (435, 43571), (493, 38445), (561, 33785), (699, 27115), (935, 20271), (957, 19805), (1165, 16269), (1479, 12815), (1595, 11883), (2465, 7689), (2563, 7395), (2805, 6757), (3495, 5423), (3961, 4785)]