18918828

素因数分解:

$2^2\times 3^2\times {\mathrm{149}}^1\times {\mathrm{3527}}^1$

素因数の和:3686

約数の個数: 36

約数和(自身を含む): 48157200

約数和(自身を除く): 29238372

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 149, 298, 447, 596, 894, 1341, 1788, 2682, 3527, 5364, 7054, 10581, 14108, 21162, 31743, 42324, 63486, 126972, 525523, 1051046, 1576569, 2102092, 3153138, 4729707, 6306276, 9459414, 18918828]

約数ペア:

[(1, 18918828), (2, 9459414), (3, 6306276), (4, 4729707), (6, 3153138), (9, 2102092), (12, 1576569), (18, 1051046), (36, 525523), (149, 126972), (298, 63486), (447, 42324), (596, 31743), (894, 21162), (1341, 14108), (1788, 10581), (2682, 7054), (3527, 5364)]