21456712

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{241}}^1\times {\mathrm{359}}^1$

素因数の和:637

約数の個数: 32

約数和(自身を含む): 41817600

約数和(自身を除く): 20360888

約数列:

[1, 2, 4, 8, 31, 62, 124, 241, 248, 359, 482, 718, 964, 1436, 1928, 2872, 7471, 11129, 14942, 22258, 29884, 44516, 59768, 86519, 89032, 173038, 346076, 692152, 2682089, 5364178, 10728356, 21456712]

約数ペア:

[(1, 21456712), (2, 10728356), (4, 5364178), (8, 2682089), (31, 692152), (62, 346076), (124, 173038), (241, 89032), (248, 86519), (359, 59768), (482, 44516), (718, 29884), (964, 22258), (1436, 14942), (1928, 11129), (2872, 7471)]