21819408

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{479}}^1$

素因数の和:576

約数の個数: 80

約数和(自身を含む): 61662720

約数和(自身を除く): 39843312

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 73, 78, 104, 146, 156, 208, 219, 292, 312, 438, 479, 584, 624, 876, 949, 958, 1168, 1437, 1752, 1898, 1916, 2847, 2874, 3504, 3796, 3832, 5694, 5748, 6227, 7592, 7664, 11388, 11496, 12454, 15184, 18681, 22776, 22992, 24908, 34967, 37362, 45552, 49816, 69934, 74724, 99632, 104901, 139868, 149448, 209802, 279736, 298896, 419604, 454571, 559472, 839208, 909142, 1363713, 1678416, 1818284, 2727426, 3636568, 5454852, 7273136, 10909704, 21819408]

約数ペア:

[(1, 21819408), (2, 10909704), (3, 7273136), (4, 5454852), (6, 3636568), (8, 2727426), (12, 1818284), (13, 1678416), (16, 1363713), (24, 909142), (26, 839208), (39, 559472), (48, 454571), (52, 419604), (73, 298896), (78, 279736), (104, 209802), (146, 149448), (156, 139868), (208, 104901), (219, 99632), (292, 74724), (312, 69934), (438, 49816), (479, 45552), (584, 37362), (624, 34967), (876, 24908), (949, 22992), (958, 22776), (1168, 18681), (1437, 15184), (1752, 12454), (1898, 11496), (1916, 11388), (2847, 7664), (2874, 7592), (3504, 6227), (3796, 5748), (3832, 5694)]