18355428

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{431}}^1$

素因数の和:474

約数の個数: 108

約数和(自身を含む): 57552768

約数和(自身を除く): 39197340

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 28, 36, 39, 42, 52, 63, 78, 84, 91, 117, 126, 156, 169, 182, 234, 252, 273, 338, 364, 431, 468, 507, 546, 676, 819, 862, 1014, 1092, 1183, 1293, 1521, 1638, 1724, 2028, 2366, 2586, 3017, 3042, 3276, 3549, 3879, 4732, 5172, 5603, 6034, 6084, 7098, 7758, 9051, 10647, 11206, 12068, 14196, 15516, 16809, 18102, 21294, 22412, 27153, 33618, 36204, 39221, 42588, 50427, 54306, 67236, 72839, 78442, 100854, 108612, 117663, 145678, 156884, 201708, 218517, 235326, 291356, 352989, 437034, 470652, 509873, 655551, 705978, 874068, 1019746, 1311102, 1411956, 1529619, 2039492, 2622204, 3059238, 4588857, 6118476, 9177714, 18355428]

約数ペア:

[(1, 18355428), (2, 9177714), (3, 6118476), (4, 4588857), (6, 3059238), (7, 2622204), (9, 2039492), (12, 1529619), (13, 1411956), (14, 1311102), (18, 1019746), (21, 874068), (26, 705978), (28, 655551), (36, 509873), (39, 470652), (42, 437034), (52, 352989), (63, 291356), (78, 235326), (84, 218517), (91, 201708), (117, 156884), (126, 145678), (156, 117663), (169, 108612), (182, 100854), (234, 78442), (252, 72839), (273, 67236), (338, 54306), (364, 50427), (431, 42588), (468, 39221), (507, 36204), (546, 33618), (676, 27153), (819, 22412), (862, 21294), (1014, 18102), (1092, 16809), (1183, 15516), (1293, 14196), (1521, 12068), (1638, 11206), (1724, 10647), (2028, 9051), (2366, 7758), (2586, 7098), (3017, 6084), (3042, 6034), (3276, 5603), (3549, 5172), (3879, 4732)]