18558477

素因数分解:

$3^4\times 7^1\times {\mathrm{71}}^1\times {\mathrm{461}}^1$

素因数の和:551

約数の個数: 40

約数和(自身を含む): 32199552

約数和(自身を除く): 13641075

約数列:

[1, 3, 7, 9, 21, 27, 63, 71, 81, 189, 213, 461, 497, 567, 639, 1383, 1491, 1917, 3227, 4149, 4473, 5751, 9681, 12447, 13419, 29043, 32731, 37341, 40257, 87129, 98193, 229117, 261387, 294579, 687351, 883737, 2062053, 2651211, 6186159, 18558477]

約数ペア:

[(1, 18558477), (3, 6186159), (7, 2651211), (9, 2062053), (21, 883737), (27, 687351), (63, 294579), (71, 261387), (81, 229117), (189, 98193), (213, 87129), (461, 40257), (497, 37341), (567, 32731), (639, 29043), (1383, 13419), (1491, 12447), (1917, 9681), (3227, 5751), (4149, 4473)]