18516872

素因数分解:

$2^3\times {\mathrm{11}}^3\times {\mathrm{37}}^1\times {\mathrm{47}}^1$

素因数の和:123

約数の個数: 64

約数和(自身を含む): 40055040

約数和(自身を除く): 21538168

約数列:

[1, 2, 4, 8, 11, 22, 37, 44, 47, 74, 88, 94, 121, 148, 188, 242, 296, 376, 407, 484, 517, 814, 968, 1034, 1331, 1628, 1739, 2068, 2662, 3256, 3478, 4136, 4477, 5324, 5687, 6956, 8954, 10648, 11374, 13912, 17908, 19129, 22748, 35816, 38258, 45496, 49247, 62557, 76516, 98494, 125114, 153032, 196988, 210419, 250228, 393976, 420838, 500456, 841676, 1683352, 2314609, 4629218, 9258436, 18516872]

約数ペア:

[(1, 18516872), (2, 9258436), (4, 4629218), (8, 2314609), (11, 1683352), (22, 841676), (37, 500456), (44, 420838), (47, 393976), (74, 250228), (88, 210419), (94, 196988), (121, 153032), (148, 125114), (188, 98494), (242, 76516), (296, 62557), (376, 49247), (407, 45496), (484, 38258), (517, 35816), (814, 22748), (968, 19129), (1034, 17908), (1331, 13912), (1628, 11374), (1739, 10648), (2068, 8954), (2662, 6956), (3256, 5687), (3478, 5324), (4136, 4477)]