156968721

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{641}}^1$

素因数の和:703

約数の個数: 72

約数和(自身を含む): 293245056

約数和(自身を除く): 136276335

約数列:

[1, 3, 7, 9, 13, 21, 23, 39, 63, 69, 91, 117, 161, 169, 207, 273, 299, 483, 507, 641, 819, 897, 1183, 1449, 1521, 1923, 2093, 2691, 3549, 3887, 4487, 5769, 6279, 8333, 10647, 11661, 13461, 14743, 18837, 24999, 27209, 34983, 40383, 44229, 58331, 74997, 81627, 103201, 108329, 132687, 174993, 191659, 244881, 309603, 324987, 524979, 574977, 758303, 928809, 974961, 1341613, 1724931, 2274909, 2491567, 4024839, 6824727, 7474701, 12074517, 17440969, 22424103, 52322907, 156968721]

約数ペア:

[(1, 156968721), (3, 52322907), (7, 22424103), (9, 17440969), (13, 12074517), (21, 7474701), (23, 6824727), (39, 4024839), (63, 2491567), (69, 2274909), (91, 1724931), (117, 1341613), (161, 974961), (169, 928809), (207, 758303), (273, 574977), (299, 524979), (483, 324987), (507, 309603), (641, 244881), (819, 191659), (897, 174993), (1183, 132687), (1449, 108329), (1521, 103201), (1923, 81627), (2093, 74997), (2691, 58331), (3549, 44229), (3887, 40383), (4487, 34983), (5769, 27209), (6279, 24999), (8333, 18837), (10647, 14743), (11661, 13461)]