18541904

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{449}}^1$

素因数の和:575

約数の個数: 40

約数和(自身を含む): 37665000

約数和(自身を除く): 19123096

約数列:

[1, 2, 4, 8, 16, 29, 58, 89, 116, 178, 232, 356, 449, 464, 712, 898, 1424, 1796, 2581, 3592, 5162, 7184, 10324, 13021, 20648, 26042, 39961, 41296, 52084, 79922, 104168, 159844, 208336, 319688, 639376, 1158869, 2317738, 4635476, 9270952, 18541904]

約数ペア:

[(1, 18541904), (2, 9270952), (4, 4635476), (8, 2317738), (16, 1158869), (29, 639376), (58, 319688), (89, 208336), (116, 159844), (178, 104168), (232, 79922), (356, 52084), (449, 41296), (464, 39961), (712, 26042), (898, 20648), (1424, 13021), (1796, 10324), (2581, 7184), (3592, 5162)]