19999368

素因数分解:

$2^3\times 3^2\times {\mathrm{89}}^1\times {\mathrm{3121}}^1$

素因数の和:3222

約数の個数: 48

約数和(自身を含む): 54791100

約数和(自身を除く): 34791732

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 89, 178, 267, 356, 534, 712, 801, 1068, 1602, 2136, 3121, 3204, 6242, 6408, 9363, 12484, 18726, 24968, 28089, 37452, 56178, 74904, 112356, 224712, 277769, 555538, 833307, 1111076, 1666614, 2222152, 2499921, 3333228, 4999842, 6666456, 9999684, 19999368]

約数ペア:

[(1, 19999368), (2, 9999684), (3, 6666456), (4, 4999842), (6, 3333228), (8, 2499921), (9, 2222152), (12, 1666614), (18, 1111076), (24, 833307), (36, 555538), (72, 277769), (89, 224712), (178, 112356), (267, 74904), (356, 56178), (534, 37452), (712, 28089), (801, 24968), (1068, 18726), (1602, 12484), (2136, 9363), (3121, 6408), (3204, 6242)]