21157824

素因数分解:

$2^6\times 3^1\times {\mathrm{263}}^1\times {\mathrm{419}}^1$

素因数の和:697

約数の個数: 56

約数和(自身を含む): 56327040

約数和(自身を除く): 35169216

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 192, 263, 419, 526, 789, 838, 1052, 1257, 1578, 1676, 2104, 2514, 3156, 3352, 4208, 5028, 6312, 6704, 8416, 10056, 12624, 13408, 16832, 20112, 25248, 26816, 40224, 50496, 80448, 110197, 220394, 330591, 440788, 661182, 881576, 1322364, 1763152, 2644728, 3526304, 5289456, 7052608, 10578912, 21157824]

約数ペア:

[(1, 21157824), (2, 10578912), (3, 7052608), (4, 5289456), (6, 3526304), (8, 2644728), (12, 1763152), (16, 1322364), (24, 881576), (32, 661182), (48, 440788), (64, 330591), (96, 220394), (192, 110197), (263, 80448), (419, 50496), (526, 40224), (789, 26816), (838, 25248), (1052, 20112), (1257, 16832), (1578, 13408), (1676, 12624), (2104, 10056), (2514, 8416), (3156, 6704), (3352, 6312), (4208, 5028)]