18834543

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{61}}^1$

素因数の和:129

約数の個数: 72

約数和(自身を含む): 35399520

約数和(自身を除く): 16564977

約数列:

[1, 3, 7, 9, 13, 21, 29, 39, 61, 63, 87, 91, 117, 169, 183, 203, 261, 273, 377, 427, 507, 549, 609, 793, 819, 1131, 1183, 1281, 1521, 1769, 1827, 2379, 2639, 3393, 3549, 3843, 4901, 5307, 5551, 7137, 7917, 10309, 10647, 12383, 14703, 15921, 16653, 22997, 23751, 30927, 34307, 37149, 44109, 49959, 68991, 72163, 92781, 102921, 111447, 160979, 206973, 216489, 298961, 308763, 482937, 649467, 896883, 1448811, 2092727, 2690649, 6278181, 18834543]

約数ペア:

[(1, 18834543), (3, 6278181), (7, 2690649), (9, 2092727), (13, 1448811), (21, 896883), (29, 649467), (39, 482937), (61, 308763), (63, 298961), (87, 216489), (91, 206973), (117, 160979), (169, 111447), (183, 102921), (203, 92781), (261, 72163), (273, 68991), (377, 49959), (427, 44109), (507, 37149), (549, 34307), (609, 30927), (793, 23751), (819, 22997), (1131, 16653), (1183, 15921), (1281, 14703), (1521, 12383), (1769, 10647), (1827, 10309), (2379, 7917), (2639, 7137), (3393, 5551), (3549, 5307), (3843, 4901)]