18937456

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{69623}}^1$

素因数の和:69648

約数の個数: 20

約数和(自身を含む): 38850192

約数和(自身を除く): 19912736

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 69623, 139246, 278492, 556984, 1113968, 1183591, 2367182, 4734364, 9468728, 18937456]

約数ペア:

[(1, 18937456), (2, 9468728), (4, 4734364), (8, 2367182), (16, 1183591), (17, 1113968), (34, 556984), (68, 278492), (136, 139246), (272, 69623)]