19900836

素因数分解:

$2^2\times 3^3\times {\mathrm{103}}^1\times {\mathrm{1789}}^1$

素因数の和:1905

約数の個数: 48

約数和(自身を含む): 52124800

約数和(自身を除く): 32223964

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 103, 108, 206, 309, 412, 618, 927, 1236, 1789, 1854, 2781, 3578, 3708, 5367, 5562, 7156, 10734, 11124, 16101, 21468, 32202, 48303, 64404, 96606, 184267, 193212, 368534, 552801, 737068, 1105602, 1658403, 2211204, 3316806, 4975209, 6633612, 9950418, 19900836]

約数ペア:

[(1, 19900836), (2, 9950418), (3, 6633612), (4, 4975209), (6, 3316806), (9, 2211204), (12, 1658403), (18, 1105602), (27, 737068), (36, 552801), (54, 368534), (103, 193212), (108, 184267), (206, 96606), (309, 64404), (412, 48303), (618, 32202), (927, 21468), (1236, 16101), (1789, 11124), (1854, 10734), (2781, 7156), (3578, 5562), (3708, 5367)]