209212927

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{107}}^1\times {\mathrm{379}}^1$

素因数の和:571

約数の個数: 32

約数和(自身を含む): 267909120

約数和(自身を除く): 58696193

約数列:

[1, 7, 11, 67, 77, 107, 379, 469, 737, 749, 1177, 2653, 4169, 5159, 7169, 8239, 25393, 29183, 40553, 50183, 78859, 177751, 279323, 283871, 446083, 552013, 1955261, 2717051, 3122581, 19019357, 29887561, 209212927]

約数ペア:

[(1, 209212927), (7, 29887561), (11, 19019357), (67, 3122581), (77, 2717051), (107, 1955261), (379, 552013), (469, 446083), (737, 283871), (749, 279323), (1177, 177751), (2653, 78859), (4169, 50183), (5159, 40553), (7169, 29183), (8239, 25393)]