21992060

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{263}}^1$

素因数の和:422

約数の個数: 48

約数和(自身を含む): 48033216

約数和(自身を除く): 26041156

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 113, 148, 185, 226, 263, 370, 452, 526, 565, 740, 1052, 1130, 1315, 2260, 2630, 4181, 5260, 8362, 9731, 16724, 19462, 20905, 29719, 38924, 41810, 48655, 59438, 83620, 97310, 118876, 148595, 194620, 297190, 594380, 1099603, 2199206, 4398412, 5498015, 10996030, 21992060]

約数ペア:

[(1, 21992060), (2, 10996030), (4, 5498015), (5, 4398412), (10, 2199206), (20, 1099603), (37, 594380), (74, 297190), (113, 194620), (148, 148595), (185, 118876), (226, 97310), (263, 83620), (370, 59438), (452, 48655), (526, 41810), (565, 38924), (740, 29719), (1052, 20905), (1130, 19462), (1315, 16724), (2260, 9731), (2630, 8362), (4181, 5260)]