21439188

素因数分解:

$2^2\times 3^3\times {\mathrm{179}}^1\times {\mathrm{1109}}^1$

素因数の和:1301

約数の個数: 48

約数和(自身を含む): 55944000

約数和(自身を除く): 34504812

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 179, 358, 537, 716, 1074, 1109, 1611, 2148, 2218, 3222, 3327, 4436, 4833, 6444, 6654, 9666, 9981, 13308, 19332, 19962, 29943, 39924, 59886, 119772, 198511, 397022, 595533, 794044, 1191066, 1786599, 2382132, 3573198, 5359797, 7146396, 10719594, 21439188]

約数ペア:

[(1, 21439188), (2, 10719594), (3, 7146396), (4, 5359797), (6, 3573198), (9, 2382132), (12, 1786599), (18, 1191066), (27, 794044), (36, 595533), (54, 397022), (108, 198511), (179, 119772), (358, 59886), (537, 39924), (716, 29943), (1074, 19962), (1109, 19332), (1611, 13308), (2148, 9981), (2218, 9666), (3222, 6654), (3327, 6444), (4436, 4833)]