21598395

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{15823}}^1$

素因数の和:15851

約数の個数: 32

約数和(自身を含む): 42534912

約数和(自身を除く): 20936517

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 195, 273, 455, 1365, 15823, 47469, 79115, 110761, 205699, 237345, 332283, 553805, 617097, 1028495, 1439893, 1661415, 3085485, 4319679, 7199465, 21598395]

約数ペア:

[(1, 21598395), (3, 7199465), (5, 4319679), (7, 3085485), (13, 1661415), (15, 1439893), (21, 1028495), (35, 617097), (39, 553805), (65, 332283), (91, 237345), (105, 205699), (195, 110761), (273, 79115), (455, 47469), (1365, 15823)]