21752235

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{503}}^1$

素因数の和:576

約数の個数: 36

約数和(自身を含む): 39036816

約数和(自身を除く): 17284581

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 155, 279, 465, 503, 961, 1395, 1509, 2515, 2883, 4527, 4805, 7545, 8649, 14415, 15593, 22635, 43245, 46779, 77965, 140337, 233895, 483383, 701685, 1450149, 2416915, 4350447, 7250745, 21752235]

約数ペア:

[(1, 21752235), (3, 7250745), (5, 4350447), (9, 2416915), (15, 1450149), (31, 701685), (45, 483383), (93, 233895), (155, 140337), (279, 77965), (465, 46779), (503, 43245), (961, 22635), (1395, 15593), (1509, 14415), (2515, 8649), (2883, 7545), (4527, 4805)]