21048195

素因数分解:

$3^1\times 5^1\times 7^3\times {\mathrm{4091}}^1$

素因数の和:4120

約数の個数: 32

約数和(自身を含む): 39283200

約数和(自身を除く): 18235005

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 343, 735, 1029, 1715, 4091, 5145, 12273, 20455, 28637, 61365, 85911, 143185, 200459, 429555, 601377, 1002295, 1403213, 3006885, 4209639, 7016065, 21048195]

約数ペア:

[(1, 21048195), (3, 7016065), (5, 4209639), (7, 3006885), (15, 1403213), (21, 1002295), (35, 601377), (49, 429555), (105, 200459), (147, 143185), (245, 85911), (343, 61365), (735, 28637), (1029, 20455), (1715, 12273), (4091, 5145)]