21461888

素因数分解:

$2^7\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1409}}^1$

素因数の和:1447

約数の個数: 64

約数和(自身を含む): 51775200

約数和(自身を除く): 30313312

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 32, 34, 56, 64, 68, 112, 119, 128, 136, 224, 238, 272, 448, 476, 544, 896, 952, 1088, 1409, 1904, 2176, 2818, 3808, 5636, 7616, 9863, 11272, 15232, 19726, 22544, 23953, 39452, 45088, 47906, 78904, 90176, 95812, 157808, 167671, 180352, 191624, 315616, 335342, 383248, 631232, 670684, 766496, 1262464, 1341368, 1532992, 2682736, 3065984, 5365472, 10730944, 21461888]

約数ペア:

[(1, 21461888), (2, 10730944), (4, 5365472), (7, 3065984), (8, 2682736), (14, 1532992), (16, 1341368), (17, 1262464), (28, 766496), (32, 670684), (34, 631232), (56, 383248), (64, 335342), (68, 315616), (112, 191624), (119, 180352), (128, 167671), (136, 157808), (224, 95812), (238, 90176), (272, 78904), (448, 47906), (476, 45088), (544, 39452), (896, 23953), (952, 22544), (1088, 19726), (1409, 15232), (1904, 11272), (2176, 9863), (2818, 7616), (3808, 5636)]