21135264

素因数分解:

$2^5\times 3^1\times {\mathrm{137}}^1\times {\mathrm{1607}}^1$

素因数の和:1757

約数の個数: 48

約数和(自身を含む): 55919808

約数和(自身を除く): 34784544

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96, 137, 274, 411, 548, 822, 1096, 1607, 1644, 2192, 3214, 3288, 4384, 4821, 6428, 6576, 9642, 12856, 13152, 19284, 25712, 38568, 51424, 77136, 154272, 220159, 440318, 660477, 880636, 1320954, 1761272, 2641908, 3522544, 5283816, 7045088, 10567632, 21135264]

約数ペア:

[(1, 21135264), (2, 10567632), (3, 7045088), (4, 5283816), (6, 3522544), (8, 2641908), (12, 1761272), (16, 1320954), (24, 880636), (32, 660477), (48, 440318), (96, 220159), (137, 154272), (274, 77136), (411, 51424), (548, 38568), (822, 25712), (1096, 19284), (1607, 13152), (1644, 12856), (2192, 9642), (3214, 6576), (3288, 6428), (4384, 4821)]