19158908

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{167}}^1$

素因数の和:266

約数の個数: 48

約数和(自身を含む): 37255680

約数和(自身を除く): 18096772

約数列:

[1, 2, 4, 23, 29, 43, 46, 58, 86, 92, 116, 167, 172, 334, 667, 668, 989, 1247, 1334, 1978, 2494, 2668, 3841, 3956, 4843, 4988, 7181, 7682, 9686, 14362, 15364, 19372, 28681, 28724, 57362, 111389, 114724, 165163, 208249, 222778, 330326, 416498, 445556, 660652, 832996, 4789727, 9579454, 19158908]

約数ペア:

[(1, 19158908), (2, 9579454), (4, 4789727), (23, 832996), (29, 660652), (43, 445556), (46, 416498), (58, 330326), (86, 222778), (92, 208249), (116, 165163), (167, 114724), (172, 111389), (334, 57362), (667, 28724), (668, 28681), (989, 19372), (1247, 15364), (1334, 14362), (1978, 9686), (2494, 7682), (2668, 7181), (3841, 4988), (3956, 4843)]