21156366

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{181}}^1$

素因数の和:238

約数の個数: 96

約数和(自身を含む): 55770624

約数和(自身を除く): 34614258

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 23, 33, 42, 46, 66, 69, 77, 121, 138, 154, 161, 181, 231, 242, 253, 322, 362, 363, 462, 483, 506, 543, 726, 759, 847, 966, 1086, 1267, 1518, 1694, 1771, 1991, 2534, 2541, 2783, 3542, 3801, 3982, 4163, 5082, 5313, 5566, 5973, 7602, 8326, 8349, 10626, 11946, 12489, 13937, 16698, 19481, 21901, 24978, 27874, 29141, 38962, 41811, 43802, 45793, 58282, 58443, 65703, 83622, 87423, 91586, 116886, 131406, 137379, 153307, 174846, 274758, 306614, 320551, 459921, 503723, 641102, 919842, 961653, 1007446, 1511169, 1923306, 3022338, 3526061, 7052122, 10578183, 21156366]

約数ペア:

[(1, 21156366), (2, 10578183), (3, 7052122), (6, 3526061), (7, 3022338), (11, 1923306), (14, 1511169), (21, 1007446), (22, 961653), (23, 919842), (33, 641102), (42, 503723), (46, 459921), (66, 320551), (69, 306614), (77, 274758), (121, 174846), (138, 153307), (154, 137379), (161, 131406), (181, 116886), (231, 91586), (242, 87423), (253, 83622), (322, 65703), (362, 58443), (363, 58282), (462, 45793), (483, 43802), (506, 41811), (543, 38962), (726, 29141), (759, 27874), (847, 24978), (966, 21901), (1086, 19481), (1267, 16698), (1518, 13937), (1694, 12489), (1771, 11946), (1991, 10626), (2534, 8349), (2541, 8326), (2783, 7602), (3542, 5973), (3801, 5566), (3982, 5313), (4163, 5082)]