21859908

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{1321}}^1$

素因数の和:1532

約数の個数: 48

約数和(自身を含む): 58633344

約数和(自身を除く): 36773436

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 197, 394, 591, 788, 1182, 1321, 1379, 2364, 2642, 2758, 3963, 4137, 5284, 5516, 7926, 8274, 9247, 15852, 16548, 18494, 27741, 36988, 55482, 110964, 260237, 520474, 780711, 1040948, 1561422, 1821659, 3122844, 3643318, 5464977, 7286636, 10929954, 21859908]

約数ペア:

[(1, 21859908), (2, 10929954), (3, 7286636), (4, 5464977), (6, 3643318), (7, 3122844), (12, 1821659), (14, 1561422), (21, 1040948), (28, 780711), (42, 520474), (84, 260237), (197, 110964), (394, 55482), (591, 36988), (788, 27741), (1182, 18494), (1321, 16548), (1379, 15852), (2364, 9247), (2642, 8274), (2758, 7926), (3963, 5516), (4137, 5284)]