21965002

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:238

約数の個数: 32

約数和(自身を含む): 35354880

約数和(自身を除く): 13389878

約数列:

[1, 2, 43, 53, 61, 79, 86, 106, 122, 158, 2279, 2623, 3233, 3397, 4187, 4558, 4819, 5246, 6466, 6794, 8374, 9638, 139019, 180041, 207217, 255407, 278038, 360082, 414434, 510814, 10982501, 21965002]

約数ペア:

[(1, 21965002), (2, 10982501), (43, 510814), (53, 414434), (61, 360082), (79, 278038), (86, 255407), (106, 207217), (122, 180041), (158, 139019), (2279, 9638), (2623, 8374), (3233, 6794), (3397, 6466), (4187, 5246), (4558, 4819)]