81898607

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{653}}^1$

素因数の和:743

約数の個数: 32

約数和(自身を含む): 105477120

約数和(自身を除く): 23578513

約数列:

[1, 7, 19, 23, 41, 133, 161, 287, 437, 653, 779, 943, 3059, 4571, 5453, 6601, 12407, 15019, 17917, 26773, 86849, 105133, 125419, 187411, 285361, 508687, 615779, 1997527, 3560809, 4310453, 11699801, 81898607]

約数ペア:

[(1, 81898607), (7, 11699801), (19, 4310453), (23, 3560809), (41, 1997527), (133, 615779), (161, 508687), (287, 285361), (437, 187411), (653, 125419), (779, 105133), (943, 86849), (3059, 26773), (4571, 17917), (5453, 15019), (6601, 12407)]