21649364

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{281}}^1$

素因数の和:416

約数の個数: 48

約数和(自身を含む): 44343936

約数和(自身を除く): 22694572

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 68, 103, 187, 206, 281, 374, 412, 562, 748, 1124, 1133, 1751, 2266, 3091, 3502, 4532, 4777, 6182, 7004, 9554, 12364, 19108, 19261, 28943, 38522, 52547, 57886, 77044, 105094, 115772, 210188, 318373, 492031, 636746, 984062, 1273492, 1968124, 5412341, 10824682, 21649364]

約数ペア:

[(1, 21649364), (2, 10824682), (4, 5412341), (11, 1968124), (17, 1273492), (22, 984062), (34, 636746), (44, 492031), (68, 318373), (103, 210188), (187, 115772), (206, 105094), (281, 77044), (374, 57886), (412, 52547), (562, 38522), (748, 28943), (1124, 19261), (1133, 19108), (1751, 12364), (2266, 9554), (3091, 7004), (3502, 6182), (4532, 4777)]