21100360

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{269}}^1$

素因数の和:370

約数の個数: 64

約数和(自身を含む): 49863600

約数和(自身を除く): 28763240

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 53, 74, 106, 148, 185, 212, 265, 269, 296, 370, 424, 530, 538, 740, 1060, 1076, 1345, 1480, 1961, 2120, 2152, 2690, 3922, 5380, 7844, 9805, 9953, 10760, 14257, 15688, 19610, 19906, 28514, 39220, 39812, 49765, 57028, 71285, 78440, 79624, 99530, 114056, 142570, 199060, 285140, 398120, 527509, 570280, 1055018, 2110036, 2637545, 4220072, 5275090, 10550180, 21100360]

約数ペア:

[(1, 21100360), (2, 10550180), (4, 5275090), (5, 4220072), (8, 2637545), (10, 2110036), (20, 1055018), (37, 570280), (40, 527509), (53, 398120), (74, 285140), (106, 199060), (148, 142570), (185, 114056), (212, 99530), (265, 79624), (269, 78440), (296, 71285), (370, 57028), (424, 49765), (530, 39812), (538, 39220), (740, 28514), (1060, 19906), (1076, 19610), (1345, 15688), (1480, 14257), (1961, 10760), (2120, 9953), (2152, 9805), (2690, 7844), (3922, 5380)]