21572408

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{173}}^1$

素因数の和:312

約数の個数: 64

約数和(自身を含む): 48232800

約数和(自身を除く): 26660392

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 109, 143, 173, 218, 286, 346, 436, 572, 692, 872, 1144, 1199, 1384, 1417, 1903, 2249, 2398, 2834, 3806, 4498, 4796, 5668, 7612, 8996, 9592, 11336, 15224, 15587, 17992, 18857, 24739, 31174, 37714, 49478, 62348, 75428, 98956, 124696, 150856, 197912, 207427, 245141, 414854, 490282, 829708, 980564, 1659416, 1961128, 2696551, 5393102, 10786204, 21572408]

約数ペア:

[(1, 21572408), (2, 10786204), (4, 5393102), (8, 2696551), (11, 1961128), (13, 1659416), (22, 980564), (26, 829708), (44, 490282), (52, 414854), (88, 245141), (104, 207427), (109, 197912), (143, 150856), (173, 124696), (218, 98956), (286, 75428), (346, 62348), (436, 49478), (572, 37714), (692, 31174), (872, 24739), (1144, 18857), (1199, 17992), (1384, 15587), (1417, 15224), (1903, 11336), (2249, 9592), (2398, 8996), (2834, 7612), (3806, 5668), (4498, 4796)]