21765780

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{2371}}^1$

素因数の和:2406

約数の個数: 96

約数和(自身を含む): 71729280

約数和(自身を除く): 49963500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 27, 30, 34, 36, 45, 51, 54, 60, 68, 85, 90, 102, 108, 135, 153, 170, 180, 204, 255, 270, 306, 340, 459, 510, 540, 612, 765, 918, 1020, 1530, 1836, 2295, 2371, 3060, 4590, 4742, 7113, 9180, 9484, 11855, 14226, 21339, 23710, 28452, 35565, 40307, 42678, 47420, 64017, 71130, 80614, 85356, 106695, 120921, 128034, 142260, 161228, 201535, 213390, 241842, 256068, 320085, 362763, 403070, 426780, 483684, 604605, 640170, 725526, 806140, 1088289, 1209210, 1280340, 1451052, 1813815, 2176578, 2418420, 3627630, 4353156, 5441445, 7255260, 10882890, 21765780]

約数ペア:

[(1, 21765780), (2, 10882890), (3, 7255260), (4, 5441445), (5, 4353156), (6, 3627630), (9, 2418420), (10, 2176578), (12, 1813815), (15, 1451052), (17, 1280340), (18, 1209210), (20, 1088289), (27, 806140), (30, 725526), (34, 640170), (36, 604605), (45, 483684), (51, 426780), (54, 403070), (60, 362763), (68, 320085), (85, 256068), (90, 241842), (102, 213390), (108, 201535), (135, 161228), (153, 142260), (170, 128034), (180, 120921), (204, 106695), (255, 85356), (270, 80614), (306, 71130), (340, 64017), (459, 47420), (510, 42678), (540, 40307), (612, 35565), (765, 28452), (918, 23710), (1020, 21339), (1530, 14226), (1836, 11855), (2295, 9484), (2371, 9180), (3060, 7113), (4590, 4742)]