21269512

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{12721}}^1$

素因数の和:12757

約数の個数: 32

約数和(自身を含む): 45799200

約数和(自身を除く): 24529688

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 76, 88, 152, 209, 418, 836, 1672, 12721, 25442, 50884, 101768, 139931, 241699, 279862, 483398, 559724, 966796, 1119448, 1933592, 2658689, 5317378, 10634756, 21269512]

約数ペア:

[(1, 21269512), (2, 10634756), (4, 5317378), (8, 2658689), (11, 1933592), (19, 1119448), (22, 966796), (38, 559724), (44, 483398), (76, 279862), (88, 241699), (152, 139931), (209, 101768), (418, 50884), (836, 25442), (1672, 12721)]