20831415

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{661}}^1$

素因数の和:871

約数の個数: 32

約数和(自身を含む): 36605952

約数和(自身を除く): 15774537

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 191, 573, 661, 955, 1983, 2101, 2865, 3305, 6303, 7271, 9915, 10505, 21813, 31515, 36355, 109065, 126251, 378753, 631255, 1388761, 1893765, 4166283, 6943805, 20831415]

約数ペア:

[(1, 20831415), (3, 6943805), (5, 4166283), (11, 1893765), (15, 1388761), (33, 631255), (55, 378753), (165, 126251), (191, 109065), (573, 36355), (661, 31515), (955, 21813), (1983, 10505), (2101, 9915), (2865, 7271), (3305, 6303)]