21190935

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{239}}^1\times {\mathrm{257}}^1$

素因数の和:527

約数の個数: 32

約数和(自身を含む): 35665920

約数和(自身を除く): 14474985

約数列:

[1, 3, 5, 15, 23, 69, 115, 239, 257, 345, 717, 771, 1195, 1285, 3585, 3855, 5497, 5911, 16491, 17733, 27485, 29555, 61423, 82455, 88665, 184269, 307115, 921345, 1412729, 4238187, 7063645, 21190935]

約数ペア:

[(1, 21190935), (3, 7063645), (5, 4238187), (15, 1412729), (23, 921345), (69, 307115), (115, 184269), (239, 88665), (257, 82455), (345, 61423), (717, 29555), (771, 27485), (1195, 17733), (1285, 16491), (3585, 5911), (3855, 5497)]