81796281

素因数分解:

$3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{229}}^1\times {\mathrm{233}}^1$

素因数の和:545

約数の個数: 32

約数和(自身を含む): 127445760

約数和(自身を除く): 45649479

約数列:

[1, 3, 7, 21, 73, 219, 229, 233, 511, 687, 699, 1533, 1603, 1631, 4809, 4893, 16717, 17009, 50151, 51027, 53357, 117019, 119063, 160071, 351057, 357189, 373499, 1120497, 3895061, 11685183, 27265427, 81796281]

約数ペア:

[(1, 81796281), (3, 27265427), (7, 11685183), (21, 3895061), (73, 1120497), (219, 373499), (229, 357189), (233, 351057), (511, 160071), (687, 119063), (699, 117019), (1533, 53357), (1603, 51027), (1631, 50151), (4809, 17009), (4893, 16717)]