628473279

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{21577}}^1$

素因数の和:21679

約数の個数: 32

約数和(自身を含む): 1021934080

約数和(自身を除く): 393460801

約数列:

[1, 3, 7, 19, 21, 57, 73, 133, 219, 399, 511, 1387, 1533, 4161, 9709, 21577, 29127, 64731, 151039, 409963, 453117, 1229889, 1575121, 2869741, 4725363, 8609223, 11025847, 29927299, 33077541, 89781897, 209491093, 628473279]

約数ペア:

[(1, 628473279), (3, 209491093), (7, 89781897), (19, 33077541), (21, 29927299), (57, 11025847), (73, 8609223), (133, 4725363), (219, 2869741), (399, 1575121), (511, 1229889), (1387, 453117), (1533, 409963), (4161, 151039), (9709, 64731), (21577, 29127)]