21701316

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{167}}^1$

素因数の和:218

約数の個数: 144

約数和(自身を含む): 67568256

約数和(自身を除く): 45866940

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 17, 21, 26, 28, 34, 39, 42, 49, 51, 52, 68, 78, 84, 91, 98, 102, 119, 147, 156, 167, 182, 196, 204, 221, 238, 273, 294, 334, 357, 364, 442, 476, 501, 546, 588, 637, 663, 668, 714, 833, 884, 1002, 1092, 1169, 1274, 1326, 1428, 1547, 1666, 1911, 2004, 2171, 2338, 2499, 2548, 2652, 2839, 3094, 3332, 3507, 3822, 4342, 4641, 4676, 4998, 5678, 6188, 6513, 7014, 7644, 8183, 8517, 8684, 9282, 9996, 10829, 11356, 13026, 14028, 15197, 16366, 17034, 18564, 19873, 21658, 24549, 26052, 30394, 32487, 32732, 34068, 36907, 39746, 43316, 45591, 49098, 59619, 60788, 64974, 73814, 79492, 91182, 98196, 106379, 110721, 119238, 129948, 139111, 147628, 182364, 212758, 221442, 238476, 258349, 278222, 319137, 417333, 425516, 442884, 516698, 556444, 638274, 775047, 834666, 1033396, 1276548, 1550094, 1669332, 1808443, 3100188, 3616886, 5425329, 7233772, 10850658, 21701316]

約数ペア:

[(1, 21701316), (2, 10850658), (3, 7233772), (4, 5425329), (6, 3616886), (7, 3100188), (12, 1808443), (13, 1669332), (14, 1550094), (17, 1276548), (21, 1033396), (26, 834666), (28, 775047), (34, 638274), (39, 556444), (42, 516698), (49, 442884), (51, 425516), (52, 417333), (68, 319137), (78, 278222), (84, 258349), (91, 238476), (98, 221442), (102, 212758), (119, 182364), (147, 147628), (156, 139111), (167, 129948), (182, 119238), (196, 110721), (204, 106379), (221, 98196), (238, 91182), (273, 79492), (294, 73814), (334, 64974), (357, 60788), (364, 59619), (442, 49098), (476, 45591), (501, 43316), (546, 39746), (588, 36907), (637, 34068), (663, 32732), (668, 32487), (714, 30394), (833, 26052), (884, 24549), (1002, 21658), (1092, 19873), (1169, 18564), (1274, 17034), (1326, 16366), (1428, 15197), (1547, 14028), (1666, 13026), (1911, 11356), (2004, 10829), (2171, 9996), (2338, 9282), (2499, 8684), (2548, 8517), (2652, 8183), (2839, 7644), (3094, 7014), (3332, 6513), (3507, 6188), (3822, 5678), (4342, 4998), (4641, 4676)]