21227968

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{179}}^1$

素因数の和:317

約数の個数: 56

約数和(自身を含む): 45262800

約数和(自身を除く): 24034832

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 109, 136, 179, 218, 272, 358, 436, 544, 716, 872, 1088, 1432, 1744, 1853, 2864, 3043, 3488, 3706, 5728, 6086, 6976, 7412, 11456, 12172, 14824, 19511, 24344, 29648, 39022, 48688, 59296, 78044, 97376, 118592, 156088, 194752, 312176, 331687, 624352, 663374, 1248704, 1326748, 2653496, 5306992, 10613984, 21227968]

約数ペア:

[(1, 21227968), (2, 10613984), (4, 5306992), (8, 2653496), (16, 1326748), (17, 1248704), (32, 663374), (34, 624352), (64, 331687), (68, 312176), (109, 194752), (136, 156088), (179, 118592), (218, 97376), (272, 78044), (358, 59296), (436, 48688), (544, 39022), (716, 29648), (872, 24344), (1088, 19511), (1432, 14824), (1744, 12172), (1853, 11456), (2864, 7412), (3043, 6976), (3488, 6086), (3706, 5728)]