21333060

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{16931}}^1$

素因数の和:16953

約数の個数: 72

約数和(自身を含む): 73958976

約数和(自身を除く): 52625916

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 16931, 33862, 50793, 67724, 84655, 101586, 118517, 152379, 169310, 203172, 237034, 253965, 304758, 338620, 355551, 474068, 507930, 592585, 609516, 711102, 761895, 1015860, 1066653, 1185170, 1422204, 1523790, 1777755, 2133306, 2370340, 3047580, 3555510, 4266612, 5333265, 7111020, 10666530, 21333060]

約数ペア:

[(1, 21333060), (2, 10666530), (3, 7111020), (4, 5333265), (5, 4266612), (6, 3555510), (7, 3047580), (9, 2370340), (10, 2133306), (12, 1777755), (14, 1523790), (15, 1422204), (18, 1185170), (20, 1066653), (21, 1015860), (28, 761895), (30, 711102), (35, 609516), (36, 592585), (42, 507930), (45, 474068), (60, 355551), (63, 338620), (70, 304758), (84, 253965), (90, 237034), (105, 203172), (126, 169310), (140, 152379), (180, 118517), (210, 101586), (252, 84655), (315, 67724), (420, 50793), (630, 33862), (1260, 16931)]