21134417397

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1\times {\mathrm{647}}^1\times {\mathrm{1399}}^1$

素因数の和:2273

約数の個数: 32

約数和(自身を含む): 29059430400

約数和(自身を除く): 7925013003

約数列:

[1, 3, 43, 129, 181, 543, 647, 1399, 1941, 4197, 7783, 23349, 27821, 60157, 83463, 117107, 180471, 253219, 351321, 759657, 905153, 2715459, 5035601, 10888417, 15106803, 32665251, 38921579, 116764737, 163832693, 491498079, 7044805799, 21134417397]

約数ペア:

[(1, 21134417397), (3, 7044805799), (43, 491498079), (129, 163832693), (181, 116764737), (543, 38921579), (647, 32665251), (1399, 15106803), (1941, 10888417), (4197, 5035601), (7783, 2715459), (23349, 905153), (27821, 759657), (60157, 351321), (83463, 253219), (117107, 180471)]