21409680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{2411}}^1$

素因数の和:2464

約数の個数: 80

約数和(自身を含む): 68192064

約数和(自身を除く): 46782384

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 37, 40, 48, 60, 74, 80, 111, 120, 148, 185, 222, 240, 296, 370, 444, 555, 592, 740, 888, 1110, 1480, 1776, 2220, 2411, 2960, 4440, 4822, 7233, 8880, 9644, 12055, 14466, 19288, 24110, 28932, 36165, 38576, 48220, 57864, 72330, 89207, 96440, 115728, 144660, 178414, 192880, 267621, 289320, 356828, 446035, 535242, 578640, 713656, 892070, 1070484, 1338105, 1427312, 1784140, 2140968, 2676210, 3568280, 4281936, 5352420, 7136560, 10704840, 21409680]

約数ペア:

[(1, 21409680), (2, 10704840), (3, 7136560), (4, 5352420), (5, 4281936), (6, 3568280), (8, 2676210), (10, 2140968), (12, 1784140), (15, 1427312), (16, 1338105), (20, 1070484), (24, 892070), (30, 713656), (37, 578640), (40, 535242), (48, 446035), (60, 356828), (74, 289320), (80, 267621), (111, 192880), (120, 178414), (148, 144660), (185, 115728), (222, 96440), (240, 89207), (296, 72330), (370, 57864), (444, 48220), (555, 38576), (592, 36165), (740, 28932), (888, 24110), (1110, 19288), (1480, 14466), (1776, 12055), (2220, 9644), (2411, 8880), (2960, 7233), (4440, 4822)]