20218812

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{1249}}^1$

素因数の和:1346

約数の個数: 48

約数和(自身を含む): 50400000

約数和(自身を除く): 30181188

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 57, 71, 76, 114, 142, 213, 228, 284, 426, 852, 1249, 1349, 2498, 2698, 3747, 4047, 4996, 5396, 7494, 8094, 14988, 16188, 23731, 47462, 71193, 88679, 94924, 142386, 177358, 266037, 284772, 354716, 532074, 1064148, 1684901, 3369802, 5054703, 6739604, 10109406, 20218812]

約数ペア:

[(1, 20218812), (2, 10109406), (3, 6739604), (4, 5054703), (6, 3369802), (12, 1684901), (19, 1064148), (38, 532074), (57, 354716), (71, 284772), (76, 266037), (114, 177358), (142, 142386), (213, 94924), (228, 88679), (284, 71193), (426, 47462), (852, 23731), (1249, 16188), (1349, 14988), (2498, 8094), (2698, 7494), (3747, 5396), (4047, 4996)]