18211821

素因数分解:

$3^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1\times {\mathrm{607}}^1$

素因数の和:820

約数の個数: 16

約数和(自身を含む): 24835584

約数和(自身を除く): 6623763

約数列:

[1, 3, 73, 137, 219, 411, 607, 1821, 10001, 30003, 44311, 83159, 132933, 249477, 6070607, 18211821]

約数ペア:

[(1, 18211821), (3, 6070607), (73, 249477), (137, 132933), (219, 83159), (411, 44311), (607, 30003), (1821, 10001)]