21000584572

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{271}}^1\times {\mathrm{56813}}^1$

素因数の和:57130

約数の個数: 48

約数和(自身を含む): 41538760704

約数和(自身を除く): 20538176132

約数列:

[1, 2, 4, 11, 22, 31, 44, 62, 124, 271, 341, 542, 682, 1084, 1364, 2981, 5962, 8401, 11924, 16802, 33604, 56813, 92411, 113626, 184822, 227252, 369644, 624943, 1249886, 1761203, 2499772, 3522406, 7044812, 15396323, 19373233, 30792646, 38746466, 61585292, 77492932, 169359553, 338719106, 477286013, 677438212, 954572026, 1909144052, 5250146143, 10500292286, 21000584572]

約数ペア:

[(1, 21000584572), (2, 10500292286), (4, 5250146143), (11, 1909144052), (22, 954572026), (31, 677438212), (44, 477286013), (62, 338719106), (124, 169359553), (271, 77492932), (341, 61585292), (542, 38746466), (682, 30792646), (1084, 19373233), (1364, 15396323), (2981, 7044812), (5962, 3522406), (8401, 2499772), (11924, 1761203), (16802, 1249886), (33604, 624943), (56813, 369644), (92411, 227252), (113626, 184822)]