19858245

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{1973}}^1$

素因数の和:2053

約数の個数: 32

約数和(自身を含む): 35247744

約数和(自身を除く): 15389499

約数列:

[1, 3, 5, 11, 15, 33, 55, 61, 165, 183, 305, 671, 915, 1973, 2013, 3355, 5919, 9865, 10065, 21703, 29595, 65109, 108515, 120353, 325545, 361059, 601765, 1323883, 1805295, 3971649, 6619415, 19858245]

約数ペア:

[(1, 19858245), (3, 6619415), (5, 3971649), (11, 1805295), (15, 1323883), (33, 601765), (55, 361059), (61, 325545), (165, 120353), (183, 108515), (305, 65109), (671, 29595), (915, 21703), (1973, 10065), (2013, 9865), (3355, 5919)]