20982156

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{7079}}^1$

素因数の和:7118

約数の個数: 48

約数和(自身を含む): 55507200

約数和(自身を除く): 34525044

約数列:

[1, 2, 3, 4, 6, 12, 13, 19, 26, 38, 39, 52, 57, 76, 78, 114, 156, 228, 247, 494, 741, 988, 1482, 2964, 7079, 14158, 21237, 28316, 42474, 84948, 92027, 134501, 184054, 269002, 276081, 368108, 403503, 538004, 552162, 807006, 1104324, 1614012, 1748513, 3497026, 5245539, 6994052, 10491078, 20982156]

約数ペア:

[(1, 20982156), (2, 10491078), (3, 6994052), (4, 5245539), (6, 3497026), (12, 1748513), (13, 1614012), (19, 1104324), (26, 807006), (38, 552162), (39, 538004), (52, 403503), (57, 368108), (76, 276081), (78, 269002), (114, 184054), (156, 134501), (228, 92027), (247, 84948), (494, 42474), (741, 28316), (988, 21237), (1482, 14158), (2964, 7079)]