21695770

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{947}}^1$

素因数の和:1062

約数の個数: 32

約数和(自身を含む): 40953600

約数和(自身を除く): 19257830

約数列:

[1, 2, 5, 10, 29, 58, 79, 145, 158, 290, 395, 790, 947, 1894, 2291, 4582, 4735, 9470, 11455, 22910, 27463, 54926, 74813, 137315, 149626, 274630, 374065, 748130, 2169577, 4339154, 10847885, 21695770]

約数ペア:

[(1, 21695770), (2, 10847885), (5, 4339154), (10, 2169577), (29, 748130), (58, 374065), (79, 274630), (145, 149626), (158, 137315), (290, 74813), (395, 54926), (790, 27463), (947, 22910), (1894, 11455), (2291, 9470), (4582, 4735)]