21486028

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{2953}}^1$

素因数の和:3081

約数の個数: 24

約数和(自身を含む): 40198032

約数和(自身を除く): 18712004

約数列:

[1, 2, 4, 17, 34, 68, 107, 214, 428, 1819, 2953, 3638, 5906, 7276, 11812, 50201, 100402, 200804, 315971, 631942, 1263884, 5371507, 10743014, 21486028]

約数ペア:

[(1, 21486028), (2, 10743014), (4, 5371507), (17, 1263884), (34, 631942), (68, 315971), (107, 200804), (214, 100402), (428, 50201), (1819, 11812), (2953, 7276), (3638, 5906)]