18943236

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2381}}^1$

素因数の和:2421

約数の個数: 72

約数和(自身を含む): 54624024

約数和(自身を除く): 35680788

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 17, 18, 26, 34, 36, 39, 51, 52, 68, 78, 102, 117, 153, 156, 204, 221, 234, 306, 442, 468, 612, 663, 884, 1326, 1989, 2381, 2652, 3978, 4762, 7143, 7956, 9524, 14286, 21429, 28572, 30953, 40477, 42858, 61906, 80954, 85716, 92859, 121431, 123812, 161908, 185718, 242862, 278577, 364293, 371436, 485724, 526201, 557154, 728586, 1052402, 1114308, 1457172, 1578603, 2104804, 3157206, 4735809, 6314412, 9471618, 18943236]

約数ペア:

[(1, 18943236), (2, 9471618), (3, 6314412), (4, 4735809), (6, 3157206), (9, 2104804), (12, 1578603), (13, 1457172), (17, 1114308), (18, 1052402), (26, 728586), (34, 557154), (36, 526201), (39, 485724), (51, 371436), (52, 364293), (68, 278577), (78, 242862), (102, 185718), (117, 161908), (153, 123812), (156, 121431), (204, 92859), (221, 85716), (234, 80954), (306, 61906), (442, 42858), (468, 40477), (612, 30953), (663, 28572), (884, 21429), (1326, 14286), (1989, 9524), (2381, 7956), (2652, 7143), (3978, 4762)]