21142730

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{163}}^1$

素因数の和:303

約数の個数: 64

約数和(自身を含む): 46759680

約数和(自身を除く): 25616950

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 70, 85, 109, 119, 163, 170, 218, 238, 326, 545, 595, 763, 815, 1090, 1141, 1190, 1526, 1630, 1853, 2282, 2771, 3706, 3815, 5542, 5705, 7630, 9265, 11410, 12971, 13855, 17767, 18530, 19397, 25942, 27710, 35534, 38794, 64855, 88835, 96985, 124369, 129710, 177670, 193970, 248738, 302039, 604078, 621845, 1243690, 1510195, 2114273, 3020390, 4228546, 10571365, 21142730]

約数ペア:

[(1, 21142730), (2, 10571365), (5, 4228546), (7, 3020390), (10, 2114273), (14, 1510195), (17, 1243690), (34, 621845), (35, 604078), (70, 302039), (85, 248738), (109, 193970), (119, 177670), (163, 129710), (170, 124369), (218, 96985), (238, 88835), (326, 64855), (545, 38794), (595, 35534), (763, 27710), (815, 25942), (1090, 19397), (1141, 18530), (1190, 17767), (1526, 13855), (1630, 12971), (1853, 11410), (2282, 9265), (2771, 7630), (3706, 5705), (3815, 5542)]