19962556

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{191}}^1$

素因数の和:294

約数の個数: 48

約数和(自身を含む): 39191040

約数和(自身を除く): 19228484

約数列:

[1, 2, 4, 17, 29, 34, 53, 58, 68, 106, 116, 191, 212, 382, 493, 764, 901, 986, 1537, 1802, 1972, 3074, 3247, 3604, 5539, 6148, 6494, 10123, 11078, 12988, 20246, 22156, 26129, 40492, 52258, 94163, 104516, 172091, 188326, 293567, 344182, 376652, 587134, 688364, 1174268, 4990639, 9981278, 19962556]

約数ペア:

[(1, 19962556), (2, 9981278), (4, 4990639), (17, 1174268), (29, 688364), (34, 587134), (53, 376652), (58, 344182), (68, 293567), (106, 188326), (116, 172091), (191, 104516), (212, 94163), (382, 52258), (493, 40492), (764, 26129), (901, 22156), (986, 20246), (1537, 12988), (1802, 11078), (1972, 10123), (3074, 6494), (3247, 6148), (3604, 5539)]