21386554

素因数分解:

$2^1\times 7^1\times {\mathrm{503}}^1\times {\mathrm{3037}}^1$

素因数の和:3549

約数の個数: 16

約数和(自身を含む): 36747648

約数和(自身を除く): 15361094

約数列:

[1, 2, 7, 14, 503, 1006, 3037, 3521, 6074, 7042, 21259, 42518, 1527611, 3055222, 10693277, 21386554]

約数ペア:

[(1, 21386554), (2, 10693277), (7, 3055222), (14, 1527611), (503, 42518), (1006, 21259), (3037, 7042), (3521, 6074)]