21381486

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{13759}}^1$

素因数の和:13808

約数の個数: 32

約数和(自身を含む): 50196480

約数和(自身を除く): 28814994

約数列:

[1, 2, 3, 6, 7, 14, 21, 37, 42, 74, 111, 222, 259, 518, 777, 1554, 13759, 27518, 41277, 82554, 96313, 192626, 288939, 509083, 577878, 1018166, 1527249, 3054498, 3563581, 7127162, 10690743, 21381486]

約数ペア:

[(1, 21381486), (2, 10690743), (3, 7127162), (6, 3563581), (7, 3054498), (14, 1527249), (21, 1018166), (37, 577878), (42, 509083), (74, 288939), (111, 192626), (222, 96313), (259, 82554), (518, 41277), (777, 27518), (1554, 13759)]