51216813

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{439}}^1$

素因数の和:626

約数の個数: 32

約数和(自身を含む): 79200000

約数和(自身を除く): 27983187

約数列:

[1, 3, 9, 27, 29, 87, 149, 261, 439, 447, 783, 1317, 1341, 3951, 4023, 4321, 11853, 12731, 12963, 38193, 38889, 65411, 114579, 116667, 196233, 343737, 588699, 1766097, 1896919, 5690757, 17072271, 51216813]

約数ペア:

[(1, 51216813), (3, 17072271), (9, 5690757), (27, 1896919), (29, 1766097), (87, 588699), (149, 343737), (261, 196233), (439, 116667), (447, 114579), (783, 65411), (1317, 38889), (1341, 38193), (3951, 12963), (4023, 12731), (4321, 11853)]