16877890

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{421}}^1$

素因数の和:658

約数の個数: 32

約数和(自身を含む): 32207040

約数和(自身を除く): 15329150

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 211, 421, 422, 842, 1055, 2105, 2110, 4009, 4210, 7999, 8018, 15998, 20045, 39995, 40090, 79990, 88831, 177662, 444155, 888310, 1687789, 3375578, 8438945, 16877890]

約数ペア:

[(1, 16877890), (2, 8438945), (5, 3375578), (10, 1687789), (19, 888310), (38, 444155), (95, 177662), (190, 88831), (211, 79990), (421, 40090), (422, 39995), (842, 20045), (1055, 15998), (2105, 8018), (2110, 7999), (4009, 4210)]