21128982

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{487}}^1\times {\mathrm{1033}}^1$

素因数の和:1532

約数の個数: 32

約数和(自身を含む): 48440832

約数和(自身を除く): 27311850

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 487, 974, 1033, 1461, 2066, 2922, 3099, 3409, 6198, 6818, 7231, 10227, 14462, 20454, 21693, 43386, 503071, 1006142, 1509213, 3018426, 3521497, 7042994, 10564491, 21128982]

約数ペア:

[(1, 21128982), (2, 10564491), (3, 7042994), (6, 3521497), (7, 3018426), (14, 1509213), (21, 1006142), (42, 503071), (487, 43386), (974, 21693), (1033, 20454), (1461, 14462), (2066, 10227), (2922, 7231), (3099, 6818), (3409, 6198)]