21428704

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{3581}}^1$

素因数の和:3619

約数の個数: 48

約数和(自身を含む): 48743856

約数和(自身を除く): 27315152

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 32, 34, 44, 68, 88, 136, 176, 187, 272, 352, 374, 544, 748, 1496, 2992, 3581, 5984, 7162, 14324, 28648, 39391, 57296, 60877, 78782, 114592, 121754, 157564, 243508, 315128, 487016, 630256, 669647, 974032, 1260512, 1339294, 1948064, 2678588, 5357176, 10714352, 21428704]

約数ペア:

[(1, 21428704), (2, 10714352), (4, 5357176), (8, 2678588), (11, 1948064), (16, 1339294), (17, 1260512), (22, 974032), (32, 669647), (34, 630256), (44, 487016), (68, 315128), (88, 243508), (136, 157564), (176, 121754), (187, 114592), (272, 78782), (352, 60877), (374, 57296), (544, 39391), (748, 28648), (1496, 14324), (2992, 7162), (3581, 5984)]