21244240

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{9157}}^1$

素因数の和:9199

約数の個数: 40

約数和(自身を含む): 51101640

約数和(自身を除く): 29857400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 9157, 18314, 36628, 45785, 73256, 91570, 146512, 183140, 265553, 366280, 531106, 732560, 1062212, 1327765, 2124424, 2655530, 4248848, 5311060, 10622120, 21244240]

約数ペア:

[(1, 21244240), (2, 10622120), (4, 5311060), (5, 4248848), (8, 2655530), (10, 2124424), (16, 1327765), (20, 1062212), (29, 732560), (40, 531106), (58, 366280), (80, 265553), (116, 183140), (145, 146512), (232, 91570), (290, 73256), (464, 45785), (580, 36628), (1160, 18314), (2320, 9157)]