21395475

素因数分解:

$3^3\times 5^2\times {\mathrm{29}}^1\times {\mathrm{1093}}^1$

素因数の和:1141

約数の個数: 48

約数和(自身を含む): 40696800

約数和(自身を除く): 19301325

約数列:

[1, 3, 5, 9, 15, 25, 27, 29, 45, 75, 87, 135, 145, 225, 261, 435, 675, 725, 783, 1093, 1305, 2175, 3279, 3915, 5465, 6525, 9837, 16395, 19575, 27325, 29511, 31697, 49185, 81975, 95091, 147555, 158485, 245925, 285273, 475455, 737775, 792425, 855819, 1426365, 2377275, 4279095, 7131825, 21395475]

約数ペア:

[(1, 21395475), (3, 7131825), (5, 4279095), (9, 2377275), (15, 1426365), (25, 855819), (27, 792425), (29, 737775), (45, 475455), (75, 285273), (87, 245925), (135, 158485), (145, 147555), (225, 95091), (261, 81975), (435, 49185), (675, 31697), (725, 29511), (783, 27325), (1093, 19575), (1305, 16395), (2175, 9837), (3279, 6525), (3915, 5465)]