19958272

素因数分解:

$2^9\times {\mathrm{17}}^1\times {\mathrm{2293}}^1$

素因数の和:2328

約数の個数: 40

約数和(自身を含む): 42241716

約数和(自身を除く): 22283444

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 128, 136, 256, 272, 512, 544, 1088, 2176, 2293, 4352, 4586, 8704, 9172, 18344, 36688, 38981, 73376, 77962, 146752, 155924, 293504, 311848, 587008, 623696, 1174016, 1247392, 2494784, 4989568, 9979136, 19958272]

約数ペア:

[(1, 19958272), (2, 9979136), (4, 4989568), (8, 2494784), (16, 1247392), (17, 1174016), (32, 623696), (34, 587008), (64, 311848), (68, 293504), (128, 155924), (136, 146752), (256, 77962), (272, 73376), (512, 38981), (544, 36688), (1088, 18344), (2176, 9172), (2293, 8704), (4352, 4586)]