21456666

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{137}}^1$

素因数の和:276

約数の個数: 96

約数和(自身を含む): 58900608

約数和(自身を除く): 37443942

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 18, 21, 22, 33, 42, 63, 66, 77, 99, 113, 126, 137, 154, 198, 226, 231, 274, 339, 411, 462, 678, 693, 791, 822, 959, 1017, 1233, 1243, 1386, 1507, 1582, 1918, 2034, 2373, 2466, 2486, 2877, 3014, 3729, 4521, 4746, 5754, 7119, 7458, 8631, 8701, 9042, 10549, 11187, 13563, 14238, 15481, 17262, 17402, 21098, 22374, 26103, 27126, 30962, 31647, 46443, 52206, 63294, 78309, 92886, 94941, 108367, 139329, 156618, 170291, 189882, 216734, 278658, 325101, 340582, 510873, 650202, 975303, 1021746, 1192037, 1532619, 1950606, 2384074, 3065238, 3576111, 7152222, 10728333, 21456666]

約数ペア:

[(1, 21456666), (2, 10728333), (3, 7152222), (6, 3576111), (7, 3065238), (9, 2384074), (11, 1950606), (14, 1532619), (18, 1192037), (21, 1021746), (22, 975303), (33, 650202), (42, 510873), (63, 340582), (66, 325101), (77, 278658), (99, 216734), (113, 189882), (126, 170291), (137, 156618), (154, 139329), (198, 108367), (226, 94941), (231, 92886), (274, 78309), (339, 63294), (411, 52206), (462, 46443), (678, 31647), (693, 30962), (791, 27126), (822, 26103), (959, 22374), (1017, 21098), (1233, 17402), (1243, 17262), (1386, 15481), (1507, 14238), (1582, 13563), (1918, 11187), (2034, 10549), (2373, 9042), (2466, 8701), (2486, 8631), (2877, 7458), (3014, 7119), (3729, 5754), (4521, 4746)]