21116220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{18523}}^1$

素因数の和:18554

約数の個数: 48

約数和(自身を含む): 62240640

約数和(自身を除く): 41124420

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, 18523, 37046, 55569, 74092, 92615, 111138, 185230, 222276, 277845, 351937, 370460, 555690, 703874, 1055811, 1111380, 1407748, 1759685, 2111622, 3519370, 4223244, 5279055, 7038740, 10558110, 21116220]

約数ペア:

[(1, 21116220), (2, 10558110), (3, 7038740), (4, 5279055), (5, 4223244), (6, 3519370), (10, 2111622), (12, 1759685), (15, 1407748), (19, 1111380), (20, 1055811), (30, 703874), (38, 555690), (57, 370460), (60, 351937), (76, 277845), (95, 222276), (114, 185230), (190, 111138), (228, 92615), (285, 74092), (380, 55569), (570, 37046), (1140, 18523)]