213948915

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{200891}}^1$

素因数の和:200970

約数の個数: 16

約数和(自身を含む): 347141376

約数和(自身を除く): 133192461

約数列:

[1, 3, 5, 15, 71, 213, 355, 1065, 200891, 602673, 1004455, 3013365, 14263261, 42789783, 71316305, 213948915]

約数ペア:

[(1, 213948915), (3, 71316305), (5, 42789783), (15, 14263261), (71, 3013365), (213, 1004455), (355, 602673), (1065, 200891)]