20441985

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{773}}^1$

素因数の和:865

約数の個数: 32

約数和(自身を含む): 34328448

約数和(自身を除く): 13886463

約数列:

[1, 3, 5, 15, 41, 43, 123, 129, 205, 215, 615, 645, 773, 1763, 2319, 3865, 5289, 8815, 11595, 26445, 31693, 33239, 95079, 99717, 158465, 166195, 475395, 498585, 1362799, 4088397, 6813995, 20441985]

約数ペア:

[(1, 20441985), (3, 6813995), (5, 4088397), (15, 1362799), (41, 498585), (43, 475395), (123, 166195), (129, 158465), (205, 99717), (215, 95079), (615, 33239), (645, 31693), (773, 26445), (1763, 11595), (2319, 8815), (3865, 5289)]