19781884

素因数分解:

$2^2\times {\mathrm{67}}^1\times {\mathrm{223}}^1\times {\mathrm{331}}^1$

素因数の和:625

約数の個数: 24

約数和(自身を含む): 35399168

約数和(自身を除く): 15617284

約数列:

[1, 2, 4, 67, 134, 223, 268, 331, 446, 662, 892, 1324, 14941, 22177, 29882, 44354, 59764, 73813, 88708, 147626, 295252, 4945471, 9890942, 19781884]

約数ペア:

[(1, 19781884), (2, 9890942), (4, 4945471), (67, 295252), (134, 147626), (223, 88708), (268, 73813), (331, 59764), (446, 44354), (662, 29882), (892, 22177), (1324, 14941)]