21208560

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{4651}}^1$

素因数の和:4686

約数の個数: 80

約数和(自身を含む): 69221760

約数和(自身を除く): 48013200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 76, 80, 95, 114, 120, 152, 190, 228, 240, 285, 304, 380, 456, 570, 760, 912, 1140, 1520, 2280, 4560, 4651, 9302, 13953, 18604, 23255, 27906, 37208, 46510, 55812, 69765, 74416, 88369, 93020, 111624, 139530, 176738, 186040, 223248, 265107, 279060, 353476, 372080, 441845, 530214, 558120, 706952, 883690, 1060428, 1116240, 1325535, 1413904, 1767380, 2120856, 2651070, 3534760, 4241712, 5302140, 7069520, 10604280, 21208560]

約数ペア:

[(1, 21208560), (2, 10604280), (3, 7069520), (4, 5302140), (5, 4241712), (6, 3534760), (8, 2651070), (10, 2120856), (12, 1767380), (15, 1413904), (16, 1325535), (19, 1116240), (20, 1060428), (24, 883690), (30, 706952), (38, 558120), (40, 530214), (48, 441845), (57, 372080), (60, 353476), (76, 279060), (80, 265107), (95, 223248), (114, 186040), (120, 176738), (152, 139530), (190, 111624), (228, 93020), (240, 88369), (285, 74416), (304, 69765), (380, 55812), (456, 46510), (570, 37208), (760, 27906), (912, 23255), (1140, 18604), (1520, 13953), (2280, 9302), (4560, 4651)]