18980493931

素因数分解:

$7^3\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{61417}}^1$

素因数の和:61508

約数の個数: 32

約数和(自身を含む): 23879318400

約数和(自身を除く): 4898824469

約数列:

[1, 7, 17, 49, 53, 119, 343, 371, 833, 901, 2597, 5831, 6307, 18179, 44149, 61417, 309043, 429919, 1044089, 3009433, 3255101, 7308623, 21066031, 22785707, 51160361, 55336717, 159499949, 358122527, 387357019, 1116499643, 2711499133, 18980493931]

約数ペア:

[(1, 18980493931), (7, 2711499133), (17, 1116499643), (49, 387357019), (53, 358122527), (119, 159499949), (343, 55336717), (371, 51160361), (833, 22785707), (901, 21066031), (2597, 7308623), (5831, 3255101), (6307, 3009433), (18179, 1044089), (44149, 429919), (61417, 309043)]