16856553

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{509}}^1$

素因数の和:621

約数の個数: 32

約数和(自身を含む): 27417600

約数和(自身を除く): 10561047

約数列:

[1, 3, 7, 19, 21, 57, 83, 133, 249, 399, 509, 581, 1527, 1577, 1743, 3563, 4731, 9671, 10689, 11039, 29013, 33117, 42247, 67697, 126741, 203091, 295729, 802693, 887187, 2408079, 5618851, 16856553]

約数ペア:

[(1, 16856553), (3, 5618851), (7, 2408079), (19, 887187), (21, 802693), (57, 295729), (83, 203091), (133, 126741), (249, 67697), (399, 42247), (509, 33117), (581, 29013), (1527, 11039), (1577, 10689), (1743, 9671), (3563, 4731)]