21286470

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{151}}^1$

素因数の和:325

約数の個数: 64

約数和(自身を含む): 53231616

約数和(自身を除く): 31945146

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 37, 74, 111, 127, 151, 185, 222, 254, 302, 370, 381, 453, 555, 635, 755, 762, 906, 1110, 1270, 1510, 1905, 2265, 3810, 4530, 4699, 5587, 9398, 11174, 14097, 16761, 19177, 23495, 27935, 28194, 33522, 38354, 46990, 55870, 57531, 70485, 83805, 95885, 115062, 140970, 167610, 191770, 287655, 575310, 709549, 1419098, 2128647, 3547745, 4257294, 7095490, 10643235, 21286470]

約数ペア:

[(1, 21286470), (2, 10643235), (3, 7095490), (5, 4257294), (6, 3547745), (10, 2128647), (15, 1419098), (30, 709549), (37, 575310), (74, 287655), (111, 191770), (127, 167610), (151, 140970), (185, 115062), (222, 95885), (254, 83805), (302, 70485), (370, 57531), (381, 55870), (453, 46990), (555, 38354), (635, 33522), (755, 28194), (762, 27935), (906, 23495), (1110, 19177), (1270, 16761), (1510, 14097), (1905, 11174), (2265, 9398), (3810, 5587), (4530, 4699)]