16220505

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{241}}^1\times {\mathrm{641}}^1$

素因数の和:897

約数の個数: 32

約数和(自身を含む): 29829888

約数和(自身を除く): 13609383

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 241, 641, 723, 1205, 1687, 1923, 3205, 3615, 4487, 5061, 8435, 9615, 13461, 22435, 25305, 67305, 154481, 463443, 772405, 1081367, 2317215, 3244101, 5406835, 16220505]

約数ペア:

[(1, 16220505), (3, 5406835), (5, 3244101), (7, 2317215), (15, 1081367), (21, 772405), (35, 463443), (105, 154481), (241, 67305), (641, 25305), (723, 22435), (1205, 13461), (1687, 9615), (1923, 8435), (3205, 5061), (3615, 4487)]