1721972161

素因数分解:

$7^3\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{9419}}^1$

素因数の和:9494

約数の個数: 32

約数和(自身を含む): 2215584000

約数和(自身を除く): 493611839

約数列:

[1, 7, 13, 41, 49, 91, 287, 343, 533, 637, 2009, 3731, 4459, 9419, 14063, 26117, 65933, 122447, 182819, 386179, 461531, 857129, 2703253, 3230717, 5020327, 5999903, 18922771, 35142289, 41999321, 132459397, 245996023, 1721972161]

約数ペア:

[(1, 1721972161), (7, 245996023), (13, 132459397), (41, 41999321), (49, 35142289), (91, 18922771), (287, 5999903), (343, 5020327), (533, 3230717), (637, 2703253), (2009, 857129), (3731, 461531), (4459, 386179), (9419, 182819), (14063, 122447), (26117, 65933)]