19941999

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{659}}^1$

素因数の和:811

約数の個数: 32

約数和(自身を含む): 33454080

約数和(自身を除く): 13512081

約数列:

[1, 3, 7, 11, 21, 33, 77, 131, 231, 393, 659, 917, 1441, 1977, 2751, 4323, 4613, 7249, 10087, 13839, 21747, 30261, 50743, 86329, 152229, 258987, 604303, 949619, 1812909, 2848857, 6647333, 19941999]

約数ペア:

[(1, 19941999), (3, 6647333), (7, 2848857), (11, 1812909), (21, 949619), (33, 604303), (77, 258987), (131, 152229), (231, 86329), (393, 50743), (659, 30261), (917, 21747), (1441, 13839), (1977, 10087), (2751, 7249), (4323, 4613)]