19568988

素因数分解:

$2^2\times 3^2\times {\mathrm{109}}^1\times {\mathrm{4987}}^1$

素因数の和:5106

約数の個数: 36

約数和(自身を含む): 49929880

約数和(自身を除く): 30360892

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 109, 218, 327, 436, 654, 981, 1308, 1962, 3924, 4987, 9974, 14961, 19948, 29922, 44883, 59844, 89766, 179532, 543583, 1087166, 1630749, 2174332, 3261498, 4892247, 6522996, 9784494, 19568988]

約数ペア:

[(1, 19568988), (2, 9784494), (3, 6522996), (4, 4892247), (6, 3261498), (9, 2174332), (12, 1630749), (18, 1087166), (36, 543583), (109, 179532), (218, 89766), (327, 59844), (436, 44883), (654, 29922), (981, 19948), (1308, 14961), (1962, 9974), (3924, 4987)]