21879156975

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{547321}}^1$

素因数の和:547388

約数の個数: 48

約数和(自身を含む): 39906341664

約数和(自身を除く): 18027184689

約数列:

[1, 3, 5, 13, 15, 25, 39, 41, 65, 75, 123, 195, 205, 325, 533, 615, 975, 1025, 1599, 2665, 3075, 7995, 13325, 39975, 547321, 1641963, 2736605, 7115173, 8209815, 13683025, 21345519, 22440161, 35575865, 41049075, 67320483, 106727595, 112200805, 177879325, 291722093, 336602415, 533637975, 561004025, 875166279, 1458610465, 1683012075, 4375831395, 7293052325, 21879156975]

約数ペア:

[(1, 21879156975), (3, 7293052325), (5, 4375831395), (13, 1683012075), (15, 1458610465), (25, 875166279), (39, 561004025), (41, 533637975), (65, 336602415), (75, 291722093), (123, 177879325), (195, 112200805), (205, 106727595), (325, 67320483), (533, 41049075), (615, 35575865), (975, 22440161), (1025, 21345519), (1599, 13683025), (2665, 8209815), (3075, 7115173), (7995, 2736605), (13325, 1641963), (39975, 547321)]