21997872

素因数分解:

$2^4\times 3^3\times {\mathrm{13}}^1\times {\mathrm{3917}}^1$

素因数の和:3947

約数の個数: 80

約数和(自身を含む): 68016480

約数和(自身を除く): 46018608

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 27, 36, 39, 48, 52, 54, 72, 78, 104, 108, 117, 144, 156, 208, 216, 234, 312, 351, 432, 468, 624, 702, 936, 1404, 1872, 2808, 3917, 5616, 7834, 11751, 15668, 23502, 31336, 35253, 47004, 50921, 62672, 70506, 94008, 101842, 105759, 141012, 152763, 188016, 203684, 211518, 282024, 305526, 407368, 423036, 458289, 564048, 611052, 814736, 846072, 916578, 1222104, 1374867, 1692144, 1833156, 2444208, 2749734, 3666312, 5499468, 7332624, 10998936, 21997872]

約数ペア:

[(1, 21997872), (2, 10998936), (3, 7332624), (4, 5499468), (6, 3666312), (8, 2749734), (9, 2444208), (12, 1833156), (13, 1692144), (16, 1374867), (18, 1222104), (24, 916578), (26, 846072), (27, 814736), (36, 611052), (39, 564048), (48, 458289), (52, 423036), (54, 407368), (72, 305526), (78, 282024), (104, 211518), (108, 203684), (117, 188016), (144, 152763), (156, 141012), (208, 105759), (216, 101842), (234, 94008), (312, 70506), (351, 62672), (432, 50921), (468, 47004), (624, 35253), (702, 31336), (936, 23502), (1404, 15668), (1872, 11751), (2808, 7834), (3917, 5616)]