19921995

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{14281}}^1$

素因数の和:14323

約数の個数: 24

約数和(自身を含む): 35647872

約数和(自身を除く): 15725877

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 155, 279, 465, 1395, 14281, 42843, 71405, 128529, 214215, 442711, 642645, 1328133, 2213555, 3984399, 6640665, 19921995]

約数ペア:

[(1, 19921995), (3, 6640665), (5, 3984399), (9, 2213555), (15, 1328133), (31, 642645), (45, 442711), (93, 214215), (155, 128529), (279, 71405), (465, 42843), (1395, 14281)]