20618379

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{1103}}^1$

素因数の和:1207

約数の個数: 24

約数和(自身を含む): 31229952

約数和(自身を除く): 10611573

約数列:

[1, 3, 9, 31, 67, 93, 201, 279, 603, 1103, 2077, 3309, 6231, 9927, 18693, 34193, 73901, 102579, 221703, 307737, 665109, 2290931, 6872793, 20618379]

約数ペア:

[(1, 20618379), (3, 6872793), (9, 2290931), (31, 665109), (67, 307737), (93, 221703), (201, 102579), (279, 73901), (603, 34193), (1103, 18693), (2077, 9927), (3309, 6231)]