19609887

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{661}}^1$

素因数の和:735

約数の個数: 32

約数和(自身を含む): 30504960

約数和(自身を除く): 10895073

約数列:

[1, 3, 11, 29, 31, 33, 87, 93, 319, 341, 661, 899, 957, 1023, 1983, 2697, 7271, 9889, 19169, 20491, 21813, 29667, 57507, 61473, 210859, 225401, 594239, 632577, 676203, 1782717, 6536629, 19609887]

約数ペア:

[(1, 19609887), (3, 6536629), (11, 1782717), (29, 676203), (31, 632577), (33, 594239), (87, 225401), (93, 210859), (319, 61473), (341, 57507), (661, 29667), (899, 21813), (957, 20491), (1023, 19169), (1983, 9889), (2697, 7271)]