81380754

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{16561}}^1$

素因数の和:16592

約数の個数: 64

約数和(自身を含む): 222593280

約数和(自身を除く): 141212526

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 27, 39, 42, 54, 63, 78, 91, 117, 126, 182, 189, 234, 273, 351, 378, 546, 702, 819, 1638, 2457, 4914, 16561, 33122, 49683, 99366, 115927, 149049, 215293, 231854, 298098, 347781, 430586, 447147, 645879, 695562, 894294, 1043343, 1291758, 1507051, 1937637, 2086686, 3014102, 3130029, 3875274, 4521153, 5812911, 6260058, 9042306, 11625822, 13563459, 27126918, 40690377, 81380754]

約数ペア:

[(1, 81380754), (2, 40690377), (3, 27126918), (6, 13563459), (7, 11625822), (9, 9042306), (13, 6260058), (14, 5812911), (18, 4521153), (21, 3875274), (26, 3130029), (27, 3014102), (39, 2086686), (42, 1937637), (54, 1507051), (63, 1291758), (78, 1043343), (91, 894294), (117, 695562), (126, 645879), (182, 447147), (189, 430586), (234, 347781), (273, 298098), (351, 231854), (378, 215293), (546, 149049), (702, 115927), (819, 99366), (1638, 49683), (2457, 33122), (4914, 16561)]