81961908

素因数分解:

$2^2\times 3^1\times 7^3\times {\mathrm{19913}}^1$

素因数の和:19941

約数の個数: 48

約数和(自身を含む): 223036800

約数和(自身を除く): 141074892

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 196, 294, 343, 588, 686, 1029, 1372, 2058, 4116, 19913, 39826, 59739, 79652, 119478, 139391, 238956, 278782, 418173, 557564, 836346, 975737, 1672692, 1951474, 2927211, 3902948, 5854422, 6830159, 11708844, 13660318, 20490477, 27320636, 40980954, 81961908]

約数ペア:

[(1, 81961908), (2, 40980954), (3, 27320636), (4, 20490477), (6, 13660318), (7, 11708844), (12, 6830159), (14, 5854422), (21, 3902948), (28, 2927211), (42, 1951474), (49, 1672692), (84, 975737), (98, 836346), (147, 557564), (196, 418173), (294, 278782), (343, 238956), (588, 139391), (686, 119478), (1029, 79652), (1372, 59739), (2058, 39826), (4116, 19913)]