21587580

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{5711}}^1$

素因数の和:5736

約数の個数: 96

約数和(自身を含む): 76769280

約数和(自身を除く): 55181700

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 84, 90, 105, 108, 126, 135, 140, 180, 189, 210, 252, 270, 315, 378, 420, 540, 630, 756, 945, 1260, 1890, 3780, 5711, 11422, 17133, 22844, 28555, 34266, 39977, 51399, 57110, 68532, 79954, 85665, 102798, 114220, 119931, 154197, 159908, 171330, 199885, 205596, 239862, 256995, 308394, 342660, 359793, 399770, 479724, 513990, 599655, 616788, 719586, 770985, 799540, 1027980, 1079379, 1199310, 1439172, 1541970, 1798965, 2158758, 2398620, 3083940, 3597930, 4317516, 5396895, 7195860, 10793790, 21587580]

約数ペア:

[(1, 21587580), (2, 10793790), (3, 7195860), (4, 5396895), (5, 4317516), (6, 3597930), (7, 3083940), (9, 2398620), (10, 2158758), (12, 1798965), (14, 1541970), (15, 1439172), (18, 1199310), (20, 1079379), (21, 1027980), (27, 799540), (28, 770985), (30, 719586), (35, 616788), (36, 599655), (42, 513990), (45, 479724), (54, 399770), (60, 359793), (63, 342660), (70, 308394), (84, 256995), (90, 239862), (105, 205596), (108, 199885), (126, 171330), (135, 159908), (140, 154197), (180, 119931), (189, 114220), (210, 102798), (252, 85665), (270, 79954), (315, 68532), (378, 57110), (420, 51399), (540, 39977), (630, 34266), (756, 28555), (945, 22844), (1260, 17133), (1890, 11422), (3780, 5711)]