21497825595

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{17761}}^1$

素因数の和:17956

約数の個数: 64

約数和(自身を含む): 37649756160

約数和(自身を除く): 16151930565

約数列:

[1, 3, 5, 15, 19, 31, 57, 93, 95, 137, 155, 285, 411, 465, 589, 685, 1767, 2055, 2603, 2945, 4247, 7809, 8835, 12741, 13015, 17761, 21235, 39045, 53283, 63705, 80693, 88805, 242079, 266415, 337459, 403465, 550591, 1012377, 1210395, 1651773, 1687295, 2433257, 2752955, 5061885, 7299771, 8258865, 10461229, 12166285, 31383687, 36498855, 46231883, 52306145, 75430967, 138695649, 156918435, 226292901, 231159415, 377154835, 693478245, 1131464505, 1433188373, 4299565119, 7165941865, 21497825595]

約数ペア:

[(1, 21497825595), (3, 7165941865), (5, 4299565119), (15, 1433188373), (19, 1131464505), (31, 693478245), (57, 377154835), (93, 231159415), (95, 226292901), (137, 156918435), (155, 138695649), (285, 75430967), (411, 52306145), (465, 46231883), (589, 36498855), (685, 31383687), (1767, 12166285), (2055, 10461229), (2603, 8258865), (2945, 7299771), (4247, 5061885), (7809, 2752955), (8835, 2433257), (12741, 1687295), (13015, 1651773), (17761, 1210395), (21235, 1012377), (39045, 550591), (53283, 403465), (63705, 337459), (80693, 266415), (88805, 242079)]