21199542

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{947}}^1$

素因数の和:1013

約数の個数: 64

約数和(自身を含む): 53512704

約数和(自身を除く): 32313162

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 41, 42, 78, 82, 91, 123, 182, 246, 273, 287, 533, 546, 574, 861, 947, 1066, 1599, 1722, 1894, 2841, 3198, 3731, 5682, 6629, 7462, 11193, 12311, 13258, 19887, 22386, 24622, 36933, 38827, 39774, 73866, 77654, 86177, 116481, 172354, 232962, 258531, 271789, 504751, 517062, 543578, 815367, 1009502, 1514253, 1630734, 3028506, 3533257, 7066514, 10599771, 21199542]

約数ペア:

[(1, 21199542), (2, 10599771), (3, 7066514), (6, 3533257), (7, 3028506), (13, 1630734), (14, 1514253), (21, 1009502), (26, 815367), (39, 543578), (41, 517062), (42, 504751), (78, 271789), (82, 258531), (91, 232962), (123, 172354), (182, 116481), (246, 86177), (273, 77654), (287, 73866), (533, 39774), (546, 38827), (574, 36933), (861, 24622), (947, 22386), (1066, 19887), (1599, 13258), (1722, 12311), (1894, 11193), (2841, 7462), (3198, 6629), (3731, 5682)]