21372204

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1$

素因数の和:215

約数の個数: 96

約数和(自身を含む): 59885056

約数和(自身を除く): 38512852

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 43, 61, 84, 86, 97, 122, 129, 172, 183, 194, 244, 258, 291, 301, 366, 388, 427, 516, 582, 602, 679, 732, 854, 903, 1164, 1204, 1281, 1358, 1708, 1806, 2037, 2562, 2623, 2716, 3612, 4074, 4171, 5124, 5246, 5917, 7869, 8148, 8342, 10492, 11834, 12513, 15738, 16684, 17751, 18361, 23668, 25026, 29197, 31476, 35502, 36722, 41419, 50052, 55083, 58394, 71004, 73444, 82838, 87591, 110166, 116788, 124257, 165676, 175182, 220332, 248514, 254431, 350364, 497028, 508862, 763293, 1017724, 1526586, 1781017, 3053172, 3562034, 5343051, 7124068, 10686102, 21372204]

約数ペア:

[(1, 21372204), (2, 10686102), (3, 7124068), (4, 5343051), (6, 3562034), (7, 3053172), (12, 1781017), (14, 1526586), (21, 1017724), (28, 763293), (42, 508862), (43, 497028), (61, 350364), (84, 254431), (86, 248514), (97, 220332), (122, 175182), (129, 165676), (172, 124257), (183, 116788), (194, 110166), (244, 87591), (258, 82838), (291, 73444), (301, 71004), (366, 58394), (388, 55083), (427, 50052), (516, 41419), (582, 36722), (602, 35502), (679, 31476), (732, 29197), (854, 25026), (903, 23668), (1164, 18361), (1204, 17751), (1281, 16684), (1358, 15738), (1708, 12513), (1806, 11834), (2037, 10492), (2562, 8342), (2623, 8148), (2716, 7869), (3612, 5917), (4074, 5246), (4171, 5124)]