21401220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{18773}}^1$

素因数の和:18804

約数の個数: 48

約数和(自身を含む): 63080640

約数和(自身を除く): 41679420

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 190, 228, 285, 380, 570, 1140, 18773, 37546, 56319, 75092, 93865, 112638, 187730, 225276, 281595, 356687, 375460, 563190, 713374, 1070061, 1126380, 1426748, 1783435, 2140122, 3566870, 4280244, 5350305, 7133740, 10700610, 21401220]

約数ペア:

[(1, 21401220), (2, 10700610), (3, 7133740), (4, 5350305), (5, 4280244), (6, 3566870), (10, 2140122), (12, 1783435), (15, 1426748), (19, 1126380), (20, 1070061), (30, 713374), (38, 563190), (57, 375460), (60, 356687), (76, 281595), (95, 225276), (114, 187730), (190, 112638), (228, 93865), (285, 75092), (380, 56319), (570, 37546), (1140, 18773)]