217481817

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{181}}^1\times {\mathrm{1973}}^1$

素因数の和:2193

約数の個数: 32

約数和(自身を含む): 344897280

約数和(自身を除く): 127415463

約数列:

[1, 3, 7, 21, 29, 87, 181, 203, 543, 609, 1267, 1973, 3801, 5249, 5919, 13811, 15747, 36743, 41433, 57217, 110229, 171651, 357113, 400519, 1071339, 1201557, 2499791, 7499373, 10356277, 31068831, 72493939, 217481817]

約数ペア:

[(1, 217481817), (3, 72493939), (7, 31068831), (21, 10356277), (29, 7499373), (87, 2499791), (181, 1201557), (203, 1071339), (543, 400519), (609, 357113), (1267, 171651), (1973, 110229), (3801, 57217), (5249, 41433), (5919, 36743), (13811, 15747)]