71291781

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{251}}^1$

素因数の和:438

約数の個数: 48

約数和(自身を含む): 119508480

約数和(自身を除く): 48216699

約数列:

[1, 3, 9, 11, 19, 33, 57, 99, 151, 171, 209, 251, 453, 627, 753, 1359, 1661, 1881, 2259, 2761, 2869, 4769, 4983, 8283, 8607, 14307, 14949, 24849, 25821, 31559, 37901, 42921, 52459, 94677, 113703, 157377, 284031, 341109, 416911, 472131, 720119, 1250733, 2160357, 3752199, 6481071, 7921309, 23763927, 71291781]

約数ペア:

[(1, 71291781), (3, 23763927), (9, 7921309), (11, 6481071), (19, 3752199), (33, 2160357), (57, 1250733), (99, 720119), (151, 472131), (171, 416911), (209, 341109), (251, 284031), (453, 157377), (627, 113703), (753, 94677), (1359, 52459), (1661, 42921), (1881, 37901), (2259, 31559), (2761, 25821), (2869, 24849), (4769, 14949), (4983, 14307), (8283, 8607)]