21998680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{173}}^1$

素因数の和:229

約数の個数: 96

約数和(自身を含む): 57691440

約数和(自身を除く): 35692760

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 40, 44, 55, 68, 85, 88, 110, 136, 170, 173, 187, 220, 289, 340, 346, 374, 440, 578, 680, 692, 748, 865, 935, 1156, 1384, 1445, 1496, 1730, 1870, 1903, 2312, 2890, 2941, 3179, 3460, 3740, 3806, 5780, 5882, 6358, 6920, 7480, 7612, 9515, 11560, 11764, 12716, 14705, 15224, 15895, 19030, 23528, 25432, 29410, 31790, 32351, 38060, 49997, 58820, 63580, 64702, 76120, 99994, 117640, 127160, 129404, 161755, 199988, 249985, 258808, 323510, 399976, 499970, 549967, 647020, 999940, 1099934, 1294040, 1999880, 2199868, 2749835, 4399736, 5499670, 10999340, 21998680]

約数ペア:

[(1, 21998680), (2, 10999340), (4, 5499670), (5, 4399736), (8, 2749835), (10, 2199868), (11, 1999880), (17, 1294040), (20, 1099934), (22, 999940), (34, 647020), (40, 549967), (44, 499970), (55, 399976), (68, 323510), (85, 258808), (88, 249985), (110, 199988), (136, 161755), (170, 129404), (173, 127160), (187, 117640), (220, 99994), (289, 76120), (340, 64702), (346, 63580), (374, 58820), (440, 49997), (578, 38060), (680, 32351), (692, 31790), (748, 29410), (865, 25432), (935, 23528), (1156, 19030), (1384, 15895), (1445, 15224), (1496, 14705), (1730, 12716), (1870, 11764), (1903, 11560), (2312, 9515), (2890, 7612), (2941, 7480), (3179, 6920), (3460, 6358), (3740, 5882), (3806, 5780)]