21695986

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{1187}}^1$

素因数の和:1258

約数の個数: 32

約数和(自身を含む): 37920960

約数和(自身を除く): 16224974

約数列:

[1, 2, 13, 19, 26, 37, 38, 74, 247, 481, 494, 703, 962, 1187, 1406, 2374, 9139, 15431, 18278, 22553, 30862, 43919, 45106, 87838, 293189, 570947, 586378, 834461, 1141894, 1668922, 10847993, 21695986]

約数ペア:

[(1, 21695986), (2, 10847993), (13, 1668922), (19, 1141894), (26, 834461), (37, 586378), (38, 570947), (74, 293189), (247, 87838), (481, 45106), (494, 43919), (703, 30862), (962, 22553), (1187, 18278), (1406, 15431), (2374, 9139)]