20056995

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{1553}}^1$

素因数の和:1612

約数の個数: 48

約数和(自身を含む): 40727232

約数和(自身を除く): 20670237

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 41, 45, 63, 105, 123, 205, 287, 315, 369, 615, 861, 1435, 1553, 1845, 2583, 4305, 4659, 7765, 10871, 12915, 13977, 23295, 32613, 54355, 63673, 69885, 97839, 163065, 191019, 318365, 445711, 489195, 573057, 955095, 1337133, 2228555, 2865285, 4011399, 6685665, 20056995]

約数ペア:

[(1, 20056995), (3, 6685665), (5, 4011399), (7, 2865285), (9, 2228555), (15, 1337133), (21, 955095), (35, 573057), (41, 489195), (45, 445711), (63, 318365), (105, 191019), (123, 163065), (205, 97839), (287, 69885), (315, 63673), (369, 54355), (615, 32613), (861, 23295), (1435, 13977), (1553, 12915), (1845, 10871), (2583, 7765), (4305, 4659)]