19865504

素因数分解:

$2^5\times {\mathrm{61}}^1\times {\mathrm{10177}}^1$

素因数の和:10248

約数の個数: 24

約数和(自身を含む): 39755268

約数和(自身を除く): 19889764

約数列:

[1, 2, 4, 8, 16, 32, 61, 122, 244, 488, 976, 1952, 10177, 20354, 40708, 81416, 162832, 325664, 620797, 1241594, 2483188, 4966376, 9932752, 19865504]

約数ペア:

[(1, 19865504), (2, 9932752), (4, 4966376), (8, 2483188), (16, 1241594), (32, 620797), (61, 325664), (122, 162832), (244, 81416), (488, 40708), (976, 20354), (1952, 10177)]