20686796

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{313}}^1$

素因数の和:402

約数の個数: 48

約数和(自身を含む): 41357568

約数和(自身を除く): 20670772

約数列:

[1, 2, 4, 13, 26, 31, 41, 52, 62, 82, 124, 164, 313, 403, 533, 626, 806, 1066, 1252, 1271, 1612, 2132, 2542, 4069, 5084, 8138, 9703, 12833, 16276, 16523, 19406, 25666, 33046, 38812, 51332, 66092, 126139, 166829, 252278, 333658, 397823, 504556, 667316, 795646, 1591292, 5171699, 10343398, 20686796]

約数ペア:

[(1, 20686796), (2, 10343398), (4, 5171699), (13, 1591292), (26, 795646), (31, 667316), (41, 504556), (52, 397823), (62, 333658), (82, 252278), (124, 166829), (164, 126139), (313, 66092), (403, 51332), (533, 38812), (626, 33046), (806, 25666), (1066, 19406), (1252, 16523), (1271, 16276), (1612, 12833), (2132, 9703), (2542, 8138), (4069, 5084)]