19559696

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{271}}^1\times {\mathrm{347}}^1$

素因数の和:639

約数の個数: 40

約数和(自身を含む): 41080704

約数和(自身を除く): 21521008

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 271, 347, 542, 694, 1084, 1388, 2168, 2776, 3523, 4336, 4511, 5552, 7046, 9022, 14092, 18044, 28184, 36088, 56368, 72176, 94037, 188074, 376148, 752296, 1222481, 1504592, 2444962, 4889924, 9779848, 19559696]

約数ペア:

[(1, 19559696), (2, 9779848), (4, 4889924), (8, 2444962), (13, 1504592), (16, 1222481), (26, 752296), (52, 376148), (104, 188074), (208, 94037), (271, 72176), (347, 56368), (542, 36088), (694, 28184), (1084, 18044), (1388, 14092), (2168, 9022), (2776, 7046), (3523, 5552), (4336, 4511)]