21351498

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{31}}^2$

素因数の和:120

約数の個数: 72

約数和(自身を含む): 52716384

約数和(自身を除く): 31364886

約数列:

[1, 2, 3, 6, 7, 14, 21, 23, 31, 42, 46, 62, 69, 93, 138, 161, 186, 217, 322, 434, 483, 529, 651, 713, 961, 966, 1058, 1302, 1426, 1587, 1922, 2139, 2883, 3174, 3703, 4278, 4991, 5766, 6727, 7406, 9982, 11109, 13454, 14973, 16399, 20181, 22103, 22218, 29946, 32798, 40362, 44206, 49197, 66309, 98394, 114793, 132618, 154721, 229586, 309442, 344379, 464163, 508369, 688758, 928326, 1016738, 1525107, 3050214, 3558583, 7117166, 10675749, 21351498]

約数ペア:

[(1, 21351498), (2, 10675749), (3, 7117166), (6, 3558583), (7, 3050214), (14, 1525107), (21, 1016738), (23, 928326), (31, 688758), (42, 508369), (46, 464163), (62, 344379), (69, 309442), (93, 229586), (138, 154721), (161, 132618), (186, 114793), (217, 98394), (322, 66309), (434, 49197), (483, 44206), (529, 40362), (651, 32798), (713, 29946), (961, 22218), (966, 22103), (1058, 20181), (1302, 16399), (1426, 14973), (1587, 13454), (1922, 11109), (2139, 9982), (2883, 7406), (3174, 6727), (3703, 5766), (4278, 4991)]