20553204

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{389}}^1$

素因数の和:457

約数の個数: 96

約数和(自身を含む): 59754240

約数和(自身を除く): 39201036

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 17, 21, 28, 34, 37, 42, 51, 68, 74, 84, 102, 111, 119, 148, 204, 222, 238, 259, 357, 389, 444, 476, 518, 629, 714, 777, 778, 1036, 1167, 1258, 1428, 1554, 1556, 1887, 2334, 2516, 2723, 3108, 3774, 4403, 4668, 5446, 6613, 7548, 8169, 8806, 10892, 13209, 13226, 14393, 16338, 17612, 19839, 26418, 26452, 28786, 32676, 39678, 43179, 46291, 52836, 57572, 79356, 86358, 92582, 100751, 138873, 172716, 185164, 201502, 244681, 277746, 302253, 403004, 489362, 555492, 604506, 734043, 978724, 1209012, 1468086, 1712767, 2936172, 3425534, 5138301, 6851068, 10276602, 20553204]

約数ペア:

[(1, 20553204), (2, 10276602), (3, 6851068), (4, 5138301), (6, 3425534), (7, 2936172), (12, 1712767), (14, 1468086), (17, 1209012), (21, 978724), (28, 734043), (34, 604506), (37, 555492), (42, 489362), (51, 403004), (68, 302253), (74, 277746), (84, 244681), (102, 201502), (111, 185164), (119, 172716), (148, 138873), (204, 100751), (222, 92582), (238, 86358), (259, 79356), (357, 57572), (389, 52836), (444, 46291), (476, 43179), (518, 39678), (629, 32676), (714, 28786), (777, 26452), (778, 26418), (1036, 19839), (1167, 17612), (1258, 16338), (1428, 14393), (1554, 13226), (1556, 13209), (1887, 10892), (2334, 8806), (2516, 8169), (2723, 7548), (3108, 6613), (3774, 5446), (4403, 4668)]