19870746

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{6481}}^1$

素因数の和:6566

約数の個数: 32

約数和(自身を含む): 46048128

約数和(自身を除く): 26177382

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 73, 146, 219, 438, 511, 1022, 1533, 3066, 6481, 12962, 19443, 38886, 45367, 90734, 136101, 272202, 473113, 946226, 1419339, 2838678, 3311791, 6623582, 9935373, 19870746]

約数ペア:

[(1, 19870746), (2, 9935373), (3, 6623582), (6, 3311791), (7, 2838678), (14, 1419339), (21, 946226), (42, 473113), (73, 272202), (146, 136101), (219, 90734), (438, 45367), (511, 38886), (1022, 19443), (1533, 12962), (3066, 6481)]