21274218

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{2447}}^1$

素因数の和:2488

約数の個数: 64

約数和(自身を含む): 56401920

約数和(自身を除く): 35127702

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 23, 27, 42, 46, 54, 63, 69, 126, 138, 161, 189, 207, 322, 378, 414, 483, 621, 966, 1242, 1449, 2447, 2898, 4347, 4894, 7341, 8694, 14682, 17129, 22023, 34258, 44046, 51387, 56281, 66069, 102774, 112562, 132138, 154161, 168843, 308322, 337686, 393967, 462483, 506529, 787934, 924966, 1013058, 1181901, 1519587, 2363802, 3039174, 3545703, 7091406, 10637109, 21274218]

約数ペア:

[(1, 21274218), (2, 10637109), (3, 7091406), (6, 3545703), (7, 3039174), (9, 2363802), (14, 1519587), (18, 1181901), (21, 1013058), (23, 924966), (27, 787934), (42, 506529), (46, 462483), (54, 393967), (63, 337686), (69, 308322), (126, 168843), (138, 154161), (161, 132138), (189, 112562), (207, 102774), (322, 66069), (378, 56281), (414, 51387), (483, 44046), (621, 34258), (966, 22023), (1242, 17129), (1449, 14682), (2447, 8694), (2898, 7341), (4347, 4894)]