21332155

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{751}}^1$

素因数の和:811

約数の個数: 32

約数和(自身を含む): 30320640

約数和(自身を除く): 8988485

約数列:

[1, 5, 13, 19, 23, 65, 95, 115, 247, 299, 437, 751, 1235, 1495, 2185, 3755, 5681, 9763, 14269, 17273, 28405, 48815, 71345, 86365, 185497, 224549, 328187, 927485, 1122745, 1640935, 4266431, 21332155]

約数ペア:

[(1, 21332155), (5, 4266431), (13, 1640935), (19, 1122745), (23, 927485), (65, 328187), (95, 224549), (115, 185497), (247, 86365), (299, 71345), (437, 48815), (751, 28405), (1235, 17273), (1495, 14269), (2185, 9763), (3755, 5681)]