31887821

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1$

素因数の和:221

約数の個数: 32

約数和(自身を含む): 40186368

約数和(自身を除く): 8298547

約数列:

[1, 7, 23, 37, 53, 101, 161, 259, 371, 707, 851, 1219, 1961, 2323, 3737, 5353, 5957, 8533, 13727, 16261, 26159, 37471, 45103, 85951, 123119, 198061, 315721, 601657, 861833, 1386427, 4555403, 31887821]

約数ペア:

[(1, 31887821), (7, 4555403), (23, 1386427), (37, 861833), (53, 601657), (101, 315721), (161, 198061), (259, 123119), (371, 85951), (707, 45103), (851, 37471), (1219, 26159), (1961, 16261), (2323, 13727), (3737, 8533), (5353, 5957)]