21152976

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{311}}^1$

素因数の和:444

約数の個数: 80

約数和(自身を含む): 59579520

約数和(自身を除く): 38426544

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 109, 156, 208, 218, 311, 312, 327, 436, 622, 624, 654, 872, 933, 1244, 1308, 1417, 1744, 1866, 2488, 2616, 2834, 3732, 4043, 4251, 4976, 5232, 5668, 7464, 8086, 8502, 11336, 12129, 14928, 16172, 17004, 22672, 24258, 32344, 33899, 34008, 48516, 64688, 67798, 68016, 97032, 101697, 135596, 194064, 203394, 271192, 406788, 440687, 542384, 813576, 881374, 1322061, 1627152, 1762748, 2644122, 3525496, 5288244, 7050992, 10576488, 21152976]

約数ペア:

[(1, 21152976), (2, 10576488), (3, 7050992), (4, 5288244), (6, 3525496), (8, 2644122), (12, 1762748), (13, 1627152), (16, 1322061), (24, 881374), (26, 813576), (39, 542384), (48, 440687), (52, 406788), (78, 271192), (104, 203394), (109, 194064), (156, 135596), (208, 101697), (218, 97032), (311, 68016), (312, 67798), (327, 64688), (436, 48516), (622, 34008), (624, 33899), (654, 32344), (872, 24258), (933, 22672), (1244, 17004), (1308, 16172), (1417, 14928), (1744, 12129), (1866, 11336), (2488, 8502), (2616, 8086), (2834, 7464), (3732, 5668), (4043, 5232), (4251, 4976)]