21784367612

素因数分解:

$2^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{283}}^1\times {\mathrm{51871}}^1$

素因数の和:52218

約数の個数: 48

約数和(自身を含む): 44548503552

約数和(自身を除く): 22764135940

約数列:

[1, 2, 4, 7, 14, 28, 53, 106, 212, 283, 371, 566, 742, 1132, 1484, 1981, 3962, 7924, 14999, 29998, 51871, 59996, 103742, 104993, 207484, 209986, 363097, 419972, 726194, 1452388, 2749163, 5498326, 10996652, 14679493, 19244141, 29358986, 38488282, 58717972, 76976564, 102756451, 205512902, 411025804, 778013129, 1556026258, 3112052516, 5446091903, 10892183806, 21784367612]

約数ペア:

[(1, 21784367612), (2, 10892183806), (4, 5446091903), (7, 3112052516), (14, 1556026258), (28, 778013129), (53, 411025804), (106, 205512902), (212, 102756451), (283, 76976564), (371, 58717972), (566, 38488282), (742, 29358986), (1132, 19244141), (1484, 14679493), (1981, 10996652), (3962, 5498326), (7924, 2749163), (14999, 1452388), (29998, 726194), (51871, 419972), (59996, 363097), (103742, 209986), (104993, 207484)]