21000887964

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{83336857}}^1$

素因数の和:83336874

約数の個数: 36

約数和(自身を含む): 60669232624

約数和(自身を除く): 39668344660

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 83336857, 166673714, 250010571, 333347428, 500021142, 583357999, 750031713, 1000042284, 1166715998, 1500063426, 1750073997, 2333431996, 3000126852, 3500147994, 5250221991, 7000295988, 10500443982, 21000887964]

約数ペア:

[(1, 21000887964), (2, 10500443982), (3, 7000295988), (4, 5250221991), (6, 3500147994), (7, 3000126852), (9, 2333431996), (12, 1750073997), (14, 1500063426), (18, 1166715998), (21, 1000042284), (28, 750031713), (36, 583357999), (42, 500021142), (63, 333347428), (84, 250010571), (126, 166673714), (252, 83336857)]