19311615

素因数分解:

$3^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1163}}^1$

素因数の和:1221

約数の個数: 40

約数和(自身を含む): 35492688

約数和(自身を除く): 16181073

約数列:

[1, 3, 5, 9, 15, 27, 41, 45, 81, 123, 135, 205, 369, 405, 615, 1107, 1163, 1845, 3321, 3489, 5535, 5815, 10467, 16605, 17445, 31401, 47683, 52335, 94203, 143049, 157005, 238415, 429147, 471015, 715245, 1287441, 2145735, 3862323, 6437205, 19311615]

約数ペア:

[(1, 19311615), (3, 6437205), (5, 3862323), (9, 2145735), (15, 1287441), (27, 715245), (41, 471015), (45, 429147), (81, 238415), (123, 157005), (135, 143049), (205, 94203), (369, 52335), (405, 47683), (615, 31401), (1107, 17445), (1163, 16605), (1845, 10467), (3321, 5815), (3489, 5535)]