21807172988

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{123007}}^1$

素因数の和:123122

約数の個数: 48

約数和(自身を含む): 41661333504

約数和(自身を除く): 19854160516

約数列:

[1, 2, 4, 23, 41, 46, 47, 82, 92, 94, 164, 188, 943, 1081, 1886, 1927, 2162, 3772, 3854, 4324, 7708, 44321, 88642, 123007, 177284, 246014, 492028, 2829161, 5043287, 5658322, 5781329, 10086574, 11316644, 11562658, 20173148, 23125316, 115995601, 132970567, 231991202, 237034489, 265941134, 463982404, 474068978, 531882268, 948137956, 5451793247, 10903586494, 21807172988]

約数ペア:

[(1, 21807172988), (2, 10903586494), (4, 5451793247), (23, 948137956), (41, 531882268), (46, 474068978), (47, 463982404), (82, 265941134), (92, 237034489), (94, 231991202), (164, 132970567), (188, 115995601), (943, 23125316), (1081, 20173148), (1886, 11562658), (1927, 11316644), (2162, 10086574), (3772, 5781329), (3854, 5658322), (4324, 5043287), (7708, 2829161), (44321, 492028), (88642, 246014), (123007, 177284)]