19945803

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{5231}}^1$

素因数の和:5306

約数の個数: 16

約数和(自身を含む): 28127232

約数和(自身を除く): 8181429

約数列:

[1, 3, 31, 41, 93, 123, 1271, 3813, 5231, 15693, 162161, 214471, 486483, 643413, 6648601, 19945803]

約数ペア:

[(1, 19945803), (3, 6648601), (31, 643413), (41, 486483), (93, 214471), (123, 162161), (1271, 15693), (3813, 5231)]