81565743

素因数分解:

$3^1\times 7^3\times {\mathrm{31}}^1\times {\mathrm{2557}}^1$

素因数の和:2612

約数の個数: 32

約数和(自身を含む): 130969600

約数和(自身を除く): 49403857

約数列:

[1, 3, 7, 21, 31, 49, 93, 147, 217, 343, 651, 1029, 1519, 2557, 4557, 7671, 10633, 17899, 31899, 53697, 79267, 125293, 237801, 375879, 554869, 877051, 1664607, 2631153, 3884083, 11652249, 27188581, 81565743]

約数ペア:

[(1, 81565743), (3, 27188581), (7, 11652249), (21, 3884083), (31, 2631153), (49, 1664607), (93, 877051), (147, 554869), (217, 375879), (343, 237801), (651, 125293), (1029, 79267), (1519, 53697), (2557, 31899), (4557, 17899), (7671, 10633)]