20837916

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{521}}^1$

素因数の和:643

約数の個数: 72

約数和(自身を含む): 58142448

約数和(自身を除く): 37304532

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 101, 132, 198, 202, 303, 396, 404, 521, 606, 909, 1042, 1111, 1212, 1563, 1818, 2084, 2222, 3126, 3333, 3636, 4444, 4689, 5731, 6252, 6666, 9378, 9999, 11462, 13332, 17193, 18756, 19998, 22924, 34386, 39996, 51579, 52621, 68772, 103158, 105242, 157863, 206316, 210484, 315726, 473589, 578831, 631452, 947178, 1157662, 1736493, 1894356, 2315324, 3472986, 5209479, 6945972, 10418958, 20837916]

約数ペア:

[(1, 20837916), (2, 10418958), (3, 6945972), (4, 5209479), (6, 3472986), (9, 2315324), (11, 1894356), (12, 1736493), (18, 1157662), (22, 947178), (33, 631452), (36, 578831), (44, 473589), (66, 315726), (99, 210484), (101, 206316), (132, 157863), (198, 105242), (202, 103158), (303, 68772), (396, 52621), (404, 51579), (521, 39996), (606, 34386), (909, 22924), (1042, 19998), (1111, 18756), (1212, 17193), (1563, 13332), (1818, 11462), (2084, 9999), (2222, 9378), (3126, 6666), (3333, 6252), (3636, 5731), (4444, 4689)]