21351708

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{61}}^1\times {\mathrm{463}}^1$

素因数の和:544

約数の個数: 96

約数和(自身を含む): 64440320

約数和(自身を除く): 43088612

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 61, 63, 84, 108, 122, 126, 183, 189, 244, 252, 366, 378, 427, 463, 549, 732, 756, 854, 926, 1098, 1281, 1389, 1647, 1708, 1852, 2196, 2562, 2778, 3241, 3294, 3843, 4167, 5124, 5556, 6482, 6588, 7686, 8334, 9723, 11529, 12501, 12964, 15372, 16668, 19446, 23058, 25002, 28243, 29169, 38892, 46116, 50004, 56486, 58338, 84729, 87507, 112972, 116676, 169458, 175014, 197701, 254187, 338916, 350028, 395402, 508374, 593103, 762561, 790804, 1016748, 1186206, 1525122, 1779309, 2372412, 3050244, 3558618, 5337927, 7117236, 10675854, 21351708]

約数ペア:

[(1, 21351708), (2, 10675854), (3, 7117236), (4, 5337927), (6, 3558618), (7, 3050244), (9, 2372412), (12, 1779309), (14, 1525122), (18, 1186206), (21, 1016748), (27, 790804), (28, 762561), (36, 593103), (42, 508374), (54, 395402), (61, 350028), (63, 338916), (84, 254187), (108, 197701), (122, 175014), (126, 169458), (183, 116676), (189, 112972), (244, 87507), (252, 84729), (366, 58338), (378, 56486), (427, 50004), (463, 46116), (549, 38892), (732, 29169), (756, 28243), (854, 25002), (926, 23058), (1098, 19446), (1281, 16668), (1389, 15372), (1647, 12964), (1708, 12501), (1852, 11529), (2196, 9723), (2562, 8334), (2778, 7686), (3241, 6588), (3294, 6482), (3843, 5556), (4167, 5124)]