19861993151

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{421}}^1\times {\mathrm{6733}}^1$

素因数の和:7192

約数の個数: 48

約数和(自身を含む): 27212578848

約数和(自身を除く): 7350585697

約数列:

[1, 7, 11, 13, 49, 77, 91, 143, 421, 539, 637, 1001, 2947, 4631, 5473, 6733, 7007, 20629, 32417, 38311, 47131, 60203, 74063, 87529, 226919, 268177, 329917, 421421, 518441, 612703, 962819, 2834593, 2949947, 3629087, 4288921, 6739733, 19842151, 31180523, 36849709, 47178131, 138895057, 218263661, 257947963, 405346799, 1527845627, 1805635741, 2837427593, 19861993151]

約数ペア:

[(1, 19861993151), (7, 2837427593), (11, 1805635741), (13, 1527845627), (49, 405346799), (77, 257947963), (91, 218263661), (143, 138895057), (421, 47178131), (539, 36849709), (637, 31180523), (1001, 19842151), (2947, 6739733), (4631, 4288921), (5473, 3629087), (6733, 2949947), (7007, 2834593), (20629, 962819), (32417, 612703), (38311, 518441), (47131, 421421), (60203, 329917), (74063, 268177), (87529, 226919)]