21391668

素因数分解:

$2^2\times 3^3\times {\mathrm{41}}^1\times {\mathrm{4831}}^1$

素因数の和:4885

約数の個数: 48

約数和(自身を含む): 56824320

約数和(自身を除く): 35432652

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 41, 54, 82, 108, 123, 164, 246, 369, 492, 738, 1107, 1476, 2214, 4428, 4831, 9662, 14493, 19324, 28986, 43479, 57972, 86958, 130437, 173916, 198071, 260874, 396142, 521748, 594213, 792284, 1188426, 1782639, 2376852, 3565278, 5347917, 7130556, 10695834, 21391668]

約数ペア:

[(1, 21391668), (2, 10695834), (3, 7130556), (4, 5347917), (6, 3565278), (9, 2376852), (12, 1782639), (18, 1188426), (27, 792284), (36, 594213), (41, 521748), (54, 396142), (82, 260874), (108, 198071), (123, 173916), (164, 130437), (246, 86958), (369, 57972), (492, 43479), (738, 28986), (1107, 19324), (1476, 14493), (2214, 9662), (4428, 4831)]