681621388

素因数分解:

$2^2\times 7^1\times {\mathrm{2039}}^1\times {\mathrm{11939}}^1$

素因数の和:13989

約数の個数: 24

約数和(自身を含む): 1364025600

約数和(自身を除く): 682404212

約数列:

[1, 2, 4, 7, 14, 28, 2039, 4078, 8156, 11939, 14273, 23878, 28546, 47756, 57092, 83573, 167146, 334292, 24343621, 48687242, 97374484, 170405347, 340810694, 681621388]

約数ペア:

[(1, 681621388), (2, 340810694), (4, 170405347), (7, 97374484), (14, 48687242), (28, 24343621), (2039, 334292), (4078, 167146), (8156, 83573), (11939, 57092), (14273, 47756), (23878, 28546)]