51987015

素因数分解:

$3^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{5581}}^1$

素因数の和:5621

約数の個数: 40

約数和(自身を含む): 97260768

約数和(自身を除く): 45273753

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 81, 115, 135, 207, 345, 405, 621, 1035, 1863, 3105, 5581, 9315, 16743, 27905, 50229, 83715, 128363, 150687, 251145, 385089, 452061, 641815, 753435, 1155267, 1925445, 2260305, 3465801, 5776335, 10397403, 17329005, 51987015]

約数ペア:

[(1, 51987015), (3, 17329005), (5, 10397403), (9, 5776335), (15, 3465801), (23, 2260305), (27, 1925445), (45, 1155267), (69, 753435), (81, 641815), (115, 452061), (135, 385089), (207, 251145), (345, 150687), (405, 128363), (621, 83715), (1035, 50229), (1863, 27905), (3105, 16743), (5581, 9315)]