21576996921

素因数分解:

$3^1\times {\mathrm{17}}^3\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{233}}^1$

素因数の和:451

約数の個数: 64

約数和(自身を含む): 31504412160

約数和(自身を除く): 9927415239

約数列:

[1, 3, 17, 51, 61, 103, 183, 233, 289, 309, 699, 867, 1037, 1751, 3111, 3961, 4913, 5253, 6283, 11883, 14213, 14739, 17629, 18849, 23999, 29767, 42639, 52887, 67337, 71997, 89301, 106811, 202011, 241621, 299693, 320433, 407983, 506039, 724863, 899079, 1144729, 1223949, 1463939, 1518117, 1815787, 3434187, 4107557, 4391817, 5447361, 6935711, 12322671, 20807133, 24886963, 30868379, 69828469, 74660889, 92605137, 117907087, 209485407, 353721261, 423078371, 1269235113, 7192332307, 21576996921]

約数ペア:

[(1, 21576996921), (3, 7192332307), (17, 1269235113), (51, 423078371), (61, 353721261), (103, 209485407), (183, 117907087), (233, 92605137), (289, 74660889), (309, 69828469), (699, 30868379), (867, 24886963), (1037, 20807133), (1751, 12322671), (3111, 6935711), (3961, 5447361), (4913, 4391817), (5253, 4107557), (6283, 3434187), (11883, 1815787), (14213, 1518117), (14739, 1463939), (17629, 1223949), (18849, 1144729), (23999, 899079), (29767, 724863), (42639, 506039), (52887, 407983), (67337, 320433), (71997, 299693), (89301, 241621), (106811, 202011)]