21947835

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{2297}}^1$

素因数の和:2332

約数の個数: 48

約数和(自身を含む): 44011296

約数和(自身を除く): 22063461

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 49, 65, 91, 105, 147, 195, 245, 273, 455, 637, 735, 1365, 1911, 2297, 3185, 6891, 9555, 11485, 16079, 29861, 34455, 48237, 80395, 89583, 112553, 149305, 209027, 241185, 337659, 447915, 562765, 627081, 1045135, 1463189, 1688295, 3135405, 4389567, 7315945, 21947835]

約数ペア:

[(1, 21947835), (3, 7315945), (5, 4389567), (7, 3135405), (13, 1688295), (15, 1463189), (21, 1045135), (35, 627081), (39, 562765), (49, 447915), (65, 337659), (91, 241185), (105, 209027), (147, 149305), (195, 112553), (245, 89583), (273, 80395), (455, 48237), (637, 34455), (735, 29861), (1365, 16079), (1911, 11485), (2297, 9555), (3185, 6891)]