18720324

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{74287}}^1$

素因数の和:74304

約数の個数: 36

約数和(自身を含む): 54081664

約数和(自身を除く): 35361340

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 74287, 148574, 222861, 297148, 445722, 520009, 668583, 891444, 1040018, 1337166, 1560027, 2080036, 2674332, 3120054, 4680081, 6240108, 9360162, 18720324]

約数ペア:

[(1, 18720324), (2, 9360162), (3, 6240108), (4, 4680081), (6, 3120054), (7, 2674332), (9, 2080036), (12, 1560027), (14, 1337166), (18, 1040018), (21, 891444), (28, 668583), (36, 520009), (42, 445722), (63, 297148), (84, 222861), (126, 148574), (252, 74287)]