20895915

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{467}}^1$

素因数の和:651

約数の個数: 32

約数和(自身を含む): 35493120

約数和(自身を除く): 14597205

約数列:

[1, 3, 5, 15, 19, 57, 95, 157, 285, 467, 471, 785, 1401, 2335, 2355, 2983, 7005, 8873, 8949, 14915, 26619, 44365, 44745, 73319, 133095, 219957, 366595, 1099785, 1393061, 4179183, 6965305, 20895915]

約数ペア:

[(1, 20895915), (3, 6965305), (5, 4179183), (15, 1393061), (19, 1099785), (57, 366595), (95, 219957), (157, 133095), (285, 73319), (467, 44745), (471, 44365), (785, 26619), (1401, 14915), (2335, 8949), (2355, 8873), (2983, 7005)]