21280476

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{167}}^1$

素因数の和:259

約数の個数: 96

約数和(自身を含む): 60060672

約数和(自身を除く): 38780196

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 37, 41, 42, 74, 82, 84, 111, 123, 148, 164, 167, 222, 246, 259, 287, 334, 444, 492, 501, 518, 574, 668, 777, 861, 1002, 1036, 1148, 1169, 1517, 1554, 1722, 2004, 2338, 3034, 3108, 3444, 3507, 4551, 4676, 6068, 6179, 6847, 7014, 9102, 10619, 12358, 13694, 14028, 18204, 18537, 20541, 21238, 24716, 27388, 31857, 37074, 41082, 42476, 43253, 47929, 63714, 74148, 82164, 86506, 95858, 127428, 129759, 143787, 173012, 191716, 253339, 259518, 287574, 506678, 519036, 575148, 760017, 1013356, 1520034, 1773373, 3040068, 3546746, 5320119, 7093492, 10640238, 21280476]

約数ペア:

[(1, 21280476), (2, 10640238), (3, 7093492), (4, 5320119), (6, 3546746), (7, 3040068), (12, 1773373), (14, 1520034), (21, 1013356), (28, 760017), (37, 575148), (41, 519036), (42, 506678), (74, 287574), (82, 259518), (84, 253339), (111, 191716), (123, 173012), (148, 143787), (164, 129759), (167, 127428), (222, 95858), (246, 86506), (259, 82164), (287, 74148), (334, 63714), (444, 47929), (492, 43253), (501, 42476), (518, 41082), (574, 37074), (668, 31857), (777, 27388), (861, 24716), (1002, 21238), (1036, 20541), (1148, 18537), (1169, 18204), (1517, 14028), (1554, 13694), (1722, 12358), (2004, 10619), (2338, 9102), (3034, 7014), (3108, 6847), (3444, 6179), (3507, 6068), (4551, 4676)]