81984546

素因数分解:

$2^1\times 3^2\times 7^5\times {\mathrm{271}}^1$

素因数の和:314

約数の個数: 72

約数和(自身を含む): 208001664

約数和(自身を除く): 126017118

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 63, 98, 126, 147, 271, 294, 343, 441, 542, 686, 813, 882, 1029, 1626, 1897, 2058, 2401, 2439, 3087, 3794, 4802, 4878, 5691, 6174, 7203, 11382, 13279, 14406, 16807, 17073, 21609, 26558, 33614, 34146, 39837, 43218, 50421, 79674, 92953, 100842, 119511, 151263, 185906, 239022, 278859, 302526, 557718, 650671, 836577, 1301342, 1673154, 1952013, 3904026, 4554697, 5856039, 9109394, 11712078, 13664091, 27328182, 40992273, 81984546]

約数ペア:

[(1, 81984546), (2, 40992273), (3, 27328182), (6, 13664091), (7, 11712078), (9, 9109394), (14, 5856039), (18, 4554697), (21, 3904026), (42, 1952013), (49, 1673154), (63, 1301342), (98, 836577), (126, 650671), (147, 557718), (271, 302526), (294, 278859), (343, 239022), (441, 185906), (542, 151263), (686, 119511), (813, 100842), (882, 92953), (1029, 79674), (1626, 50421), (1897, 43218), (2058, 39837), (2401, 34146), (2439, 33614), (3087, 26558), (3794, 21609), (4802, 17073), (4878, 16807), (5691, 14406), (6174, 13279), (7203, 11382)]