21084070

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{359}}^1\times {\mathrm{839}}^1$

素因数の和:1212

約数の個数: 32

約数和(自身を含む): 43545600

約数和(自身を除く): 22461530

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 359, 718, 839, 1678, 1795, 2513, 3590, 4195, 5026, 5873, 8390, 11746, 12565, 25130, 29365, 58730, 301201, 602402, 1506005, 2108407, 3012010, 4216814, 10542035, 21084070]

約数ペア:

[(1, 21084070), (2, 10542035), (5, 4216814), (7, 3012010), (10, 2108407), (14, 1506005), (35, 602402), (70, 301201), (359, 58730), (718, 29365), (839, 25130), (1678, 12565), (1795, 11746), (2513, 8390), (3590, 5873), (4195, 5026)]