21075240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{10331}}^1$

素因数の和:10362

約数の個数: 64

約数和(自身を含む): 66951360

約数和(自身を除く): 45876120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 204, 255, 340, 408, 510, 680, 1020, 2040, 10331, 20662, 30993, 41324, 51655, 61986, 82648, 103310, 123972, 154965, 175627, 206620, 247944, 309930, 351254, 413240, 526881, 619860, 702508, 878135, 1053762, 1239720, 1405016, 1756270, 2107524, 2634405, 3512540, 4215048, 5268810, 7025080, 10537620, 21075240]

約数ペア:

[(1, 21075240), (2, 10537620), (3, 7025080), (4, 5268810), (5, 4215048), (6, 3512540), (8, 2634405), (10, 2107524), (12, 1756270), (15, 1405016), (17, 1239720), (20, 1053762), (24, 878135), (30, 702508), (34, 619860), (40, 526881), (51, 413240), (60, 351254), (68, 309930), (85, 247944), (102, 206620), (120, 175627), (136, 154965), (170, 123972), (204, 103310), (255, 82648), (340, 61986), (408, 51655), (510, 41324), (680, 30993), (1020, 20662), (2040, 10331)]