21788970

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{3347}}^1$

素因数の和:3395

約数の個数: 64

約数和(自身を含む): 61710336

約数和(自身を除く): 39921366

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 31, 35, 42, 62, 70, 93, 105, 155, 186, 210, 217, 310, 434, 465, 651, 930, 1085, 1302, 2170, 3255, 3347, 6510, 6694, 10041, 16735, 20082, 23429, 33470, 46858, 50205, 70287, 100410, 103757, 117145, 140574, 207514, 234290, 311271, 351435, 518785, 622542, 702870, 726299, 1037570, 1452598, 1556355, 2178897, 3112710, 3631495, 4357794, 7262990, 10894485, 21788970]

約数ペア:

[(1, 21788970), (2, 10894485), (3, 7262990), (5, 4357794), (6, 3631495), (7, 3112710), (10, 2178897), (14, 1556355), (15, 1452598), (21, 1037570), (30, 726299), (31, 702870), (35, 622542), (42, 518785), (62, 351435), (70, 311271), (93, 234290), (105, 207514), (155, 140574), (186, 117145), (210, 103757), (217, 100410), (310, 70287), (434, 50205), (465, 46858), (651, 33470), (930, 23429), (1085, 20082), (1302, 16735), (2170, 10041), (3255, 6694), (3347, 6510)]