21699396

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{359}}^1$

素因数の和:465

約数の個数: 72

約数和(自身を含む): 58181760

約数和(自身を除く): 36482364

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 73, 92, 138, 146, 207, 219, 276, 292, 359, 414, 438, 657, 718, 828, 876, 1077, 1314, 1436, 1679, 2154, 2628, 3231, 3358, 4308, 5037, 6462, 6716, 8257, 10074, 12924, 15111, 16514, 20148, 24771, 26207, 30222, 33028, 49542, 52414, 60444, 74313, 78621, 99084, 104828, 148626, 157242, 235863, 297252, 314484, 471726, 602761, 943452, 1205522, 1808283, 2411044, 3616566, 5424849, 7233132, 10849698, 21699396]

約数ペア:

[(1, 21699396), (2, 10849698), (3, 7233132), (4, 5424849), (6, 3616566), (9, 2411044), (12, 1808283), (18, 1205522), (23, 943452), (36, 602761), (46, 471726), (69, 314484), (73, 297252), (92, 235863), (138, 157242), (146, 148626), (207, 104828), (219, 99084), (276, 78621), (292, 74313), (359, 60444), (414, 52414), (438, 49542), (657, 33028), (718, 30222), (828, 26207), (876, 24771), (1077, 20148), (1314, 16514), (1436, 15111), (1679, 12924), (2154, 10074), (2628, 8257), (3231, 6716), (3358, 6462), (4308, 5037)]