209514921

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{5011}}^1$

素因数の和:5213

約数の個数: 32

約数和(自身を含む): 350278656

約数和(自身を除く): 140763735

約数列:

[1, 3, 7, 11, 21, 33, 77, 181, 231, 543, 1267, 1991, 3801, 5011, 5973, 13937, 15033, 35077, 41811, 55121, 105231, 165363, 385847, 906991, 1157541, 2720973, 6348937, 9976901, 19046811, 29930703, 69838307, 209514921]

約数ペア:

[(1, 209514921), (3, 69838307), (7, 29930703), (11, 19046811), (21, 9976901), (33, 6348937), (77, 2720973), (181, 1157541), (231, 906991), (543, 385847), (1267, 165363), (1991, 105231), (3801, 55121), (5011, 41811), (5973, 35077), (13937, 15033)]