18612153

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:179

約数の個数: 64

約数和(自身を含む): 34099200

約数和(自身を除く): 15487047

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 71, 73, 133, 171, 189, 213, 219, 399, 497, 511, 513, 639, 657, 1197, 1349, 1387, 1491, 1533, 1917, 1971, 3591, 4047, 4161, 4473, 4599, 5183, 9443, 9709, 12141, 12483, 13419, 13797, 15549, 28329, 29127, 36281, 36423, 37449, 46647, 84987, 87381, 98477, 108843, 139941, 254961, 262143, 295431, 326529, 689339, 886293, 979587, 2068017, 2658879, 6204051, 18612153]

約数ペア:

[(1, 18612153), (3, 6204051), (7, 2658879), (9, 2068017), (19, 979587), (21, 886293), (27, 689339), (57, 326529), (63, 295431), (71, 262143), (73, 254961), (133, 139941), (171, 108843), (189, 98477), (213, 87381), (219, 84987), (399, 46647), (497, 37449), (511, 36423), (513, 36281), (639, 29127), (657, 28329), (1197, 15549), (1349, 13797), (1387, 13419), (1491, 12483), (1533, 12141), (1917, 9709), (1971, 9443), (3591, 5183), (4047, 4599), (4161, 4473)]