21756774

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{3821}}^1$

素因数の和:3912

約数の個数: 32

約数和(自身を含む): 47515104

約数和(自身を除く): 25758330

約数列:

[1, 2, 3, 6, 13, 26, 39, 73, 78, 146, 219, 438, 949, 1898, 2847, 3821, 5694, 7642, 11463, 22926, 49673, 99346, 149019, 278933, 298038, 557866, 836799, 1673598, 3626129, 7252258, 10878387, 21756774]

約数ペア:

[(1, 21756774), (2, 10878387), (3, 7252258), (6, 3626129), (13, 1673598), (26, 836799), (39, 557866), (73, 298038), (78, 278933), (146, 149019), (219, 99346), (438, 49673), (949, 22926), (1898, 11463), (2847, 7642), (3821, 5694)]