21241836

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1$

素因数の和:204

約数の個数: 144

約数和(自身を含む): 68490240

約数和(自身を除く): 47248404

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 21, 22, 28, 33, 36, 42, 44, 63, 66, 77, 79, 84, 97, 99, 126, 132, 154, 158, 194, 198, 231, 237, 252, 291, 308, 316, 388, 396, 462, 474, 553, 582, 679, 693, 711, 869, 873, 924, 948, 1067, 1106, 1164, 1358, 1386, 1422, 1659, 1738, 1746, 2037, 2134, 2212, 2607, 2716, 2772, 2844, 3201, 3318, 3476, 3492, 4074, 4268, 4977, 5214, 6083, 6111, 6402, 6636, 7469, 7663, 7821, 8148, 9603, 9954, 10428, 12166, 12222, 12804, 14938, 15326, 15642, 18249, 19206, 19908, 22407, 22989, 24332, 24444, 29876, 30652, 31284, 36498, 38412, 44814, 45978, 53641, 54747, 67221, 68967, 72996, 84293, 89628, 91956, 107282, 109494, 134442, 137934, 160923, 168586, 214564, 218988, 252879, 268884, 275868, 321846, 337172, 482769, 505758, 590051, 643692, 758637, 965538, 1011516, 1180102, 1517274, 1770153, 1931076, 2360204, 3034548, 3540306, 5310459, 7080612, 10620918, 21241836]

約数ペア:

[(1, 21241836), (2, 10620918), (3, 7080612), (4, 5310459), (6, 3540306), (7, 3034548), (9, 2360204), (11, 1931076), (12, 1770153), (14, 1517274), (18, 1180102), (21, 1011516), (22, 965538), (28, 758637), (33, 643692), (36, 590051), (42, 505758), (44, 482769), (63, 337172), (66, 321846), (77, 275868), (79, 268884), (84, 252879), (97, 218988), (99, 214564), (126, 168586), (132, 160923), (154, 137934), (158, 134442), (194, 109494), (198, 107282), (231, 91956), (237, 89628), (252, 84293), (291, 72996), (308, 68967), (316, 67221), (388, 54747), (396, 53641), (462, 45978), (474, 44814), (553, 38412), (582, 36498), (679, 31284), (693, 30652), (711, 29876), (869, 24444), (873, 24332), (924, 22989), (948, 22407), (1067, 19908), (1106, 19206), (1164, 18249), (1358, 15642), (1386, 15326), (1422, 14938), (1659, 12804), (1738, 12222), (1746, 12166), (2037, 10428), (2134, 9954), (2212, 9603), (2607, 8148), (2716, 7821), (2772, 7663), (2844, 7469), (3201, 6636), (3318, 6402), (3476, 6111), (3492, 6083), (4074, 5214), (4268, 4977)]