81918018

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{3847}}^1$

素因数の和:3888

約数の個数: 72

約数和(自身を含む): 219705408

約数和(自身を除く): 137787390

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 39, 42, 63, 78, 91, 117, 126, 169, 182, 234, 273, 338, 507, 546, 819, 1014, 1183, 1521, 1638, 2366, 3042, 3549, 3847, 7098, 7694, 10647, 11541, 21294, 23082, 26929, 34623, 50011, 53858, 69246, 80787, 100022, 150033, 161574, 242361, 300066, 350077, 450099, 484722, 650143, 700154, 900198, 1050231, 1300286, 1950429, 2100462, 3150693, 3900858, 4551001, 5851287, 6301386, 9102002, 11702574, 13653003, 27306006, 40959009, 81918018]

約数ペア:

[(1, 81918018), (2, 40959009), (3, 27306006), (6, 13653003), (7, 11702574), (9, 9102002), (13, 6301386), (14, 5851287), (18, 4551001), (21, 3900858), (26, 3150693), (39, 2100462), (42, 1950429), (63, 1300286), (78, 1050231), (91, 900198), (117, 700154), (126, 650143), (169, 484722), (182, 450099), (234, 350077), (273, 300066), (338, 242361), (507, 161574), (546, 150033), (819, 100022), (1014, 80787), (1183, 69246), (1521, 53858), (1638, 50011), (2366, 34623), (3042, 26929), (3549, 23082), (3847, 21294), (7098, 11541), (7694, 10647)]