19904964

素因数分解:

$2^2\times 3^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{353}}^1$

素因数の和:524

約数の個数: 48

約数和(自身を含む): 48211968

約数和(自身を除く): 28307004

約数列:

[1, 2, 3, 4, 6, 12, 37, 74, 111, 127, 148, 222, 254, 353, 381, 444, 508, 706, 762, 1059, 1412, 1524, 2118, 4236, 4699, 9398, 13061, 14097, 18796, 26122, 28194, 39183, 44831, 52244, 56388, 78366, 89662, 134493, 156732, 179324, 268986, 537972, 1658747, 3317494, 4976241, 6634988, 9952482, 19904964]

約数ペア:

[(1, 19904964), (2, 9952482), (3, 6634988), (4, 4976241), (6, 3317494), (12, 1658747), (37, 537972), (74, 268986), (111, 179324), (127, 156732), (148, 134493), (222, 89662), (254, 78366), (353, 56388), (381, 52244), (444, 44831), (508, 39183), (706, 28194), (762, 26122), (1059, 18796), (1412, 14097), (1524, 13061), (2118, 9398), (4236, 4699)]