51728418

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{223}}^1\times {\mathrm{263}}^1$

素因数の和:508

約数の個数: 72

約数和(自身を含む): 131459328

約数和(自身を除く): 79730910

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 63, 98, 126, 147, 223, 263, 294, 441, 446, 526, 669, 789, 882, 1338, 1561, 1578, 1841, 2007, 2367, 3122, 3682, 4014, 4683, 4734, 5523, 9366, 10927, 11046, 12887, 14049, 16569, 21854, 25774, 28098, 32781, 33138, 38661, 58649, 65562, 77322, 98343, 115983, 117298, 175947, 196686, 231966, 351894, 410543, 527841, 821086, 1055682, 1231629, 2463258, 2873801, 3694887, 5747602, 7389774, 8621403, 17242806, 25864209, 51728418]

約数ペア:

[(1, 51728418), (2, 25864209), (3, 17242806), (6, 8621403), (7, 7389774), (9, 5747602), (14, 3694887), (18, 2873801), (21, 2463258), (42, 1231629), (49, 1055682), (63, 821086), (98, 527841), (126, 410543), (147, 351894), (223, 231966), (263, 196686), (294, 175947), (441, 117298), (446, 115983), (526, 98343), (669, 77322), (789, 65562), (882, 58649), (1338, 38661), (1561, 33138), (1578, 32781), (1841, 28098), (2007, 25774), (2367, 21854), (3122, 16569), (3682, 14049), (4014, 12887), (4683, 11046), (4734, 10927), (5523, 9366)]