21115308

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{2503}}^1$

素因数の和:2566

約数の個数: 48

約数和(自身を含む): 53285120

約数和(自身を除く): 32169812

約数列:

[1, 2, 3, 4, 6, 12, 19, 37, 38, 57, 74, 76, 111, 114, 148, 222, 228, 444, 703, 1406, 2109, 2503, 2812, 4218, 5006, 7509, 8436, 10012, 15018, 30036, 47557, 92611, 95114, 142671, 185222, 190228, 277833, 285342, 370444, 555666, 570684, 1111332, 1759609, 3519218, 5278827, 7038436, 10557654, 21115308]

約数ペア:

[(1, 21115308), (2, 10557654), (3, 7038436), (4, 5278827), (6, 3519218), (12, 1759609), (19, 1111332), (37, 570684), (38, 555666), (57, 370444), (74, 285342), (76, 277833), (111, 190228), (114, 185222), (148, 142671), (222, 95114), (228, 92611), (444, 47557), (703, 30036), (1406, 15018), (2109, 10012), (2503, 8436), (2812, 7509), (4218, 5006)]