7777372221

素因数分解:

$3^7\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{823}}^1$

素因数の和:1022

約数の個数: 64

約数和(自身を含む): 12162240000

約数和(自身を除く): 4384867779

約数列:

[1, 3, 9, 27, 29, 81, 87, 149, 243, 261, 447, 729, 783, 823, 1341, 2187, 2349, 2469, 4023, 4321, 7047, 7407, 12069, 12963, 21141, 22221, 23867, 36207, 38889, 63423, 66663, 71601, 108621, 116667, 122627, 199989, 214803, 325863, 350001, 367881, 599967, 644409, 1050003, 1103643, 1799901, 1933227, 3150009, 3310929, 3556183, 5799681, 9450027, 9932787, 10668549, 17399043, 29798361, 32005647, 52197129, 89395083, 96016941, 268185249, 288050823, 864152469, 2592457407, 7777372221]

約数ペア:

[(1, 7777372221), (3, 2592457407), (9, 864152469), (27, 288050823), (29, 268185249), (81, 96016941), (87, 89395083), (149, 52197129), (243, 32005647), (261, 29798361), (447, 17399043), (729, 10668549), (783, 9932787), (823, 9450027), (1341, 5799681), (2187, 3556183), (2349, 3310929), (2469, 3150009), (4023, 1933227), (4321, 1799901), (7047, 1103643), (7407, 1050003), (12069, 644409), (12963, 599967), (21141, 367881), (22221, 350001), (23867, 325863), (36207, 214803), (38889, 199989), (63423, 122627), (66663, 116667), (71601, 108621)]