18986868

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^2\times {\mathrm{997}}^1$

素因数の和:1053

約数の個数: 54

約数和(自身を含む): 50222354

約数和(自身を除く): 31235486

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 92, 138, 207, 276, 414, 529, 828, 997, 1058, 1587, 1994, 2116, 2991, 3174, 3988, 4761, 5982, 6348, 8973, 9522, 11964, 17946, 19044, 22931, 35892, 45862, 68793, 91724, 137586, 206379, 275172, 412758, 527413, 825516, 1054826, 1582239, 2109652, 3164478, 4746717, 6328956, 9493434, 18986868]

約数ペア:

[(1, 18986868), (2, 9493434), (3, 6328956), (4, 4746717), (6, 3164478), (9, 2109652), (12, 1582239), (18, 1054826), (23, 825516), (36, 527413), (46, 412758), (69, 275172), (92, 206379), (138, 137586), (207, 91724), (276, 68793), (414, 45862), (529, 35892), (828, 22931), (997, 19044), (1058, 17946), (1587, 11964), (1994, 9522), (2116, 8973), (2991, 6348), (3174, 5982), (3988, 4761)]