19150901

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1$

素因数の和:233

約数の個数: 32

約数和(自身を含む): 25214976

約数和(自身を除く): 6064075

約数列:

[1, 7, 11, 31, 71, 77, 113, 217, 341, 497, 781, 791, 1243, 2201, 2387, 3503, 5467, 8023, 8701, 15407, 24211, 24521, 38533, 56161, 88253, 169477, 248713, 269731, 617771, 1740991, 2735843, 19150901]

約数ペア:

[(1, 19150901), (7, 2735843), (11, 1740991), (31, 617771), (71, 269731), (77, 248713), (113, 169477), (217, 88253), (341, 56161), (497, 38533), (781, 24521), (791, 24211), (1243, 15407), (2201, 8701), (2387, 8023), (3503, 5467)]