21981163968

素因数分解:

$2^6\times 3^3\times {\mathrm{12720581}}^1$

素因数の和:12720602

約数の個数: 56

約数和(自身を含む): 64620556560

約数和(自身を除く): 42639392592

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 64, 72, 96, 108, 144, 192, 216, 288, 432, 576, 864, 1728, 12720581, 25441162, 38161743, 50882324, 76323486, 101764648, 114485229, 152646972, 203529296, 228970458, 305293944, 343455687, 407058592, 457940916, 610587888, 686911374, 814117184, 915881832, 1221175776, 1373822748, 1831763664, 2442351552, 2747645496, 3663527328, 5495290992, 7327054656, 10990581984, 21981163968]

約数ペア:

[(1, 21981163968), (2, 10990581984), (3, 7327054656), (4, 5495290992), (6, 3663527328), (8, 2747645496), (9, 2442351552), (12, 1831763664), (16, 1373822748), (18, 1221175776), (24, 915881832), (27, 814117184), (32, 686911374), (36, 610587888), (48, 457940916), (54, 407058592), (64, 343455687), (72, 305293944), (96, 228970458), (108, 203529296), (144, 152646972), (192, 114485229), (216, 101764648), (288, 76323486), (432, 50882324), (576, 38161743), (864, 25441162), (1728, 12720581)]