21338040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{4337}}^1$

素因数の和:4392

約数の個数: 64

約数和(自身を含む): 65590560

約数和(自身を除く): 44252520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 41, 60, 82, 120, 123, 164, 205, 246, 328, 410, 492, 615, 820, 984, 1230, 1640, 2460, 4337, 4920, 8674, 13011, 17348, 21685, 26022, 34696, 43370, 52044, 65055, 86740, 104088, 130110, 173480, 177817, 260220, 355634, 520440, 533451, 711268, 889085, 1066902, 1422536, 1778170, 2133804, 2667255, 3556340, 4267608, 5334510, 7112680, 10669020, 21338040]

約数ペア:

[(1, 21338040), (2, 10669020), (3, 7112680), (4, 5334510), (5, 4267608), (6, 3556340), (8, 2667255), (10, 2133804), (12, 1778170), (15, 1422536), (20, 1066902), (24, 889085), (30, 711268), (40, 533451), (41, 520440), (60, 355634), (82, 260220), (120, 177817), (123, 173480), (164, 130110), (205, 104088), (246, 86740), (328, 65055), (410, 52044), (492, 43370), (615, 34696), (820, 26022), (984, 21685), (1230, 17348), (1640, 13011), (2460, 8674), (4337, 4920)]