21700560

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{12917}}^1$

素因数の和:12940

約数の個数: 80

約数和(自身を含む): 76887936

約数和(自身を除く): 55187376

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 12917, 25834, 38751, 51668, 64585, 77502, 90419, 103336, 129170, 155004, 180838, 193755, 206672, 258340, 271257, 310008, 361676, 387510, 452095, 516680, 542514, 620016, 723352, 775020, 904190, 1033360, 1085028, 1356285, 1446704, 1550040, 1808380, 2170056, 2712570, 3100080, 3616760, 4340112, 5425140, 7233520, 10850280, 21700560]

約数ペア:

[(1, 21700560), (2, 10850280), (3, 7233520), (4, 5425140), (5, 4340112), (6, 3616760), (7, 3100080), (8, 2712570), (10, 2170056), (12, 1808380), (14, 1550040), (15, 1446704), (16, 1356285), (20, 1085028), (21, 1033360), (24, 904190), (28, 775020), (30, 723352), (35, 620016), (40, 542514), (42, 516680), (48, 452095), (56, 387510), (60, 361676), (70, 310008), (80, 271257), (84, 258340), (105, 206672), (112, 193755), (120, 180838), (140, 155004), (168, 129170), (210, 103336), (240, 90419), (280, 77502), (336, 64585), (420, 51668), (560, 38751), (840, 25834), (1680, 12917)]