21031458

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{8209}}^1$

素因数の和:8282

約数の個数: 32

約数和(自身を含む): 48865920

約数和(自身を除く): 27834462

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 61, 122, 183, 366, 427, 854, 1281, 2562, 8209, 16418, 24627, 49254, 57463, 114926, 172389, 344778, 500749, 1001498, 1502247, 3004494, 3505243, 7010486, 10515729, 21031458]

約数ペア:

[(1, 21031458), (2, 10515729), (3, 7010486), (6, 3505243), (7, 3004494), (14, 1502247), (21, 1001498), (42, 500749), (61, 344778), (122, 172389), (183, 114926), (366, 57463), (427, 49254), (854, 24627), (1281, 16418), (2562, 8209)]