21956910

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{151}}^1$

素因数の和:329

約数の個数: 64

約数和(自身を含む): 54895104

約数和(自身を除く): 32938194

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 37, 74, 111, 131, 151, 185, 222, 262, 302, 370, 393, 453, 555, 655, 755, 786, 906, 1110, 1310, 1510, 1965, 2265, 3930, 4530, 4847, 5587, 9694, 11174, 14541, 16761, 19781, 24235, 27935, 29082, 33522, 39562, 48470, 55870, 59343, 72705, 83805, 98905, 118686, 145410, 167610, 197810, 296715, 593430, 731897, 1463794, 2195691, 3659485, 4391382, 7318970, 10978455, 21956910]

約数ペア:

[(1, 21956910), (2, 10978455), (3, 7318970), (5, 4391382), (6, 3659485), (10, 2195691), (15, 1463794), (30, 731897), (37, 593430), (74, 296715), (111, 197810), (131, 167610), (151, 145410), (185, 118686), (222, 98905), (262, 83805), (302, 72705), (370, 59343), (393, 55870), (453, 48470), (555, 39562), (655, 33522), (755, 29082), (786, 27935), (906, 24235), (1110, 19781), (1310, 16761), (1510, 14541), (1965, 11174), (2265, 9694), (3930, 5587), (4530, 4847)]