21836704

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{293}}^1$

素因数の和:457

約数の個数: 48

約数和(自身を含む): 46008648

約数和(自身を除く): 24171944

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 68, 136, 137, 272, 274, 293, 544, 548, 586, 1096, 1172, 2192, 2329, 2344, 4384, 4658, 4688, 4981, 9316, 9376, 9962, 18632, 19924, 37264, 39848, 40141, 74528, 79696, 80282, 159392, 160564, 321128, 642256, 682397, 1284512, 1364794, 2729588, 5459176, 10918352, 21836704]

約数ペア:

[(1, 21836704), (2, 10918352), (4, 5459176), (8, 2729588), (16, 1364794), (17, 1284512), (32, 682397), (34, 642256), (68, 321128), (136, 160564), (137, 159392), (272, 80282), (274, 79696), (293, 74528), (544, 40141), (548, 39848), (586, 37264), (1096, 19924), (1172, 18632), (2192, 9962), (2329, 9376), (2344, 9316), (4384, 4981), (4658, 4688)]