18240978

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{821}}^1$

素因数の和:879

約数の個数: 48

約数和(自身を含む): 43638336

約数和(自身を除く): 25397358

約数列:

[1, 2, 3, 6, 7, 14, 21, 23, 42, 46, 69, 138, 161, 322, 483, 529, 821, 966, 1058, 1587, 1642, 2463, 3174, 3703, 4926, 5747, 7406, 11109, 11494, 17241, 18883, 22218, 34482, 37766, 56649, 113298, 132181, 264362, 396543, 434309, 793086, 868618, 1302927, 2605854, 3040163, 6080326, 9120489, 18240978]

約数ペア:

[(1, 18240978), (2, 9120489), (3, 6080326), (6, 3040163), (7, 2605854), (14, 1302927), (21, 868618), (23, 793086), (42, 434309), (46, 396543), (69, 264362), (138, 132181), (161, 113298), (322, 56649), (483, 37766), (529, 34482), (821, 22218), (966, 18883), (1058, 17241), (1587, 11494), (1642, 11109), (2463, 7406), (3174, 5747), (3703, 4926)]