21152802820

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{4273}}^1\times {\mathrm{6037}}^1$

素因数の和:10360

約数の個数: 48

約数和(自身を含む): 45522510768

約数和(自身を除く): 24369707948

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 4273, 6037, 8546, 12074, 17092, 21365, 24148, 30185, 42730, 60370, 85460, 120740, 175193, 247517, 350386, 495034, 700772, 875965, 990068, 1237585, 1751930, 2475170, 3503860, 4950340, 25796101, 51592202, 103184404, 128980505, 257961010, 515922020, 1057640141, 2115280282, 4230560564, 5288200705, 10576401410, 21152802820]

約数ペア:

[(1, 21152802820), (2, 10576401410), (4, 5288200705), (5, 4230560564), (10, 2115280282), (20, 1057640141), (41, 515922020), (82, 257961010), (164, 128980505), (205, 103184404), (410, 51592202), (820, 25796101), (4273, 4950340), (6037, 3503860), (8546, 2475170), (12074, 1751930), (17092, 1237585), (21365, 990068), (24148, 875965), (30185, 700772), (42730, 495034), (60370, 350386), (85460, 247517), (120740, 175193)]