202017978

素因数分解:

$2^1\times 3^2\times {\mathrm{101}}^1\times {\mathrm{111121}}^1$

素因数の和:111230

約数の個数: 24

約数和(自身を含む): 442043316

約数和(自身を除く): 240025338

約数列:

[1, 2, 3, 6, 9, 18, 101, 202, 303, 606, 909, 1818, 111121, 222242, 333363, 666726, 1000089, 2000178, 11223221, 22446442, 33669663, 67339326, 101008989, 202017978]

約数ペア:

[(1, 202017978), (2, 101008989), (3, 67339326), (6, 33669663), (9, 22446442), (18, 11223221), (101, 2000178), (202, 1000089), (303, 666726), (606, 333363), (909, 222242), (1818, 111121)]