20998944

素因数分解:

$2^5\times 3^2\times {\mathrm{17}}^1\times {\mathrm{4289}}^1$

素因数の和:4322

約数の個数: 72

約数和(自身を含む): 63243180

約数和(自身を除く): 42244236

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 17, 18, 24, 32, 34, 36, 48, 51, 68, 72, 96, 102, 136, 144, 153, 204, 272, 288, 306, 408, 544, 612, 816, 1224, 1632, 2448, 4289, 4896, 8578, 12867, 17156, 25734, 34312, 38601, 51468, 68624, 72913, 77202, 102936, 137248, 145826, 154404, 205872, 218739, 291652, 308808, 411744, 437478, 583304, 617616, 656217, 874956, 1166608, 1235232, 1312434, 1749912, 2333216, 2624868, 3499824, 5249736, 6999648, 10499472, 20998944]

約数ペア:

[(1, 20998944), (2, 10499472), (3, 6999648), (4, 5249736), (6, 3499824), (8, 2624868), (9, 2333216), (12, 1749912), (16, 1312434), (17, 1235232), (18, 1166608), (24, 874956), (32, 656217), (34, 617616), (36, 583304), (48, 437478), (51, 411744), (68, 308808), (72, 291652), (96, 218739), (102, 205872), (136, 154404), (144, 145826), (153, 137248), (204, 102936), (272, 77202), (288, 72913), (306, 68624), (408, 51468), (544, 38601), (612, 34312), (816, 25734), (1224, 17156), (1632, 12867), (2448, 8578), (4289, 4896)]