21791718

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{4049}}^1$

素因数の和:4093

約数の個数: 48

約数和(自身を含む): 53071200

約数和(自身を除く): 31279482

約数列:

[1, 2, 3, 6, 9, 13, 18, 23, 26, 39, 46, 69, 78, 117, 138, 207, 234, 299, 414, 598, 897, 1794, 2691, 4049, 5382, 8098, 12147, 24294, 36441, 52637, 72882, 93127, 105274, 157911, 186254, 279381, 315822, 473733, 558762, 838143, 947466, 1210651, 1676286, 2421302, 3631953, 7263906, 10895859, 21791718]

約数ペア:

[(1, 21791718), (2, 10895859), (3, 7263906), (6, 3631953), (9, 2421302), (13, 1676286), (18, 1210651), (23, 947466), (26, 838143), (39, 558762), (46, 473733), (69, 315822), (78, 279381), (117, 186254), (138, 157911), (207, 105274), (234, 93127), (299, 72882), (414, 52637), (598, 36441), (897, 24294), (1794, 12147), (2691, 8098), (4049, 5382)]