20306355

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{829}}^1$

素因数の和:931

約数の個数: 32

約数和(自身を含む): 34421760

約数和(自身を除く): 14115405

約数列:

[1, 3, 5, 15, 23, 69, 71, 115, 213, 345, 355, 829, 1065, 1633, 2487, 4145, 4899, 8165, 12435, 19067, 24495, 57201, 58859, 95335, 176577, 286005, 294295, 882885, 1353757, 4061271, 6768785, 20306355]

約数ペア:

[(1, 20306355), (3, 6768785), (5, 4061271), (15, 1353757), (23, 882885), (69, 294295), (71, 286005), (115, 176577), (213, 95335), (345, 58859), (355, 57201), (829, 24495), (1065, 19067), (1633, 12435), (2487, 8165), (4145, 4899)]