18970605

素因数分解:

$3^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1511}}^1$

素因数の和:1559

約数の個数: 40

約数和(自身を含む): 35126784

約数和(自身を除く): 16156179

約数列:

[1, 3, 5, 9, 15, 27, 31, 45, 81, 93, 135, 155, 279, 405, 465, 837, 1395, 1511, 2511, 4185, 4533, 7555, 12555, 13599, 22665, 40797, 46841, 67995, 122391, 140523, 203985, 234205, 421569, 611955, 702615, 1264707, 2107845, 3794121, 6323535, 18970605]

約数ペア:

[(1, 18970605), (3, 6323535), (5, 3794121), (9, 2107845), (15, 1264707), (27, 702615), (31, 611955), (45, 421569), (81, 234205), (93, 203985), (135, 140523), (155, 122391), (279, 67995), (405, 46841), (465, 40797), (837, 22665), (1395, 13599), (1511, 12555), (2511, 7555), (4185, 4533)]