21058512

素因数分解:

$2^4\times 3^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{197}}^1$

素因数の和:356

約数の個数: 80

約数和(自身を含む): 58335552

約数和(自身を除く): 37277040

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 17, 24, 34, 48, 51, 68, 102, 131, 136, 197, 204, 262, 272, 393, 394, 408, 524, 591, 786, 788, 816, 1048, 1182, 1572, 1576, 2096, 2227, 2364, 3144, 3152, 3349, 4454, 4728, 6288, 6681, 6698, 8908, 9456, 10047, 13362, 13396, 17816, 20094, 25807, 26724, 26792, 35632, 40188, 51614, 53448, 53584, 77421, 80376, 103228, 106896, 154842, 160752, 206456, 309684, 412912, 438719, 619368, 877438, 1238736, 1316157, 1754876, 2632314, 3509752, 5264628, 7019504, 10529256, 21058512]

約数ペア:

[(1, 21058512), (2, 10529256), (3, 7019504), (4, 5264628), (6, 3509752), (8, 2632314), (12, 1754876), (16, 1316157), (17, 1238736), (24, 877438), (34, 619368), (48, 438719), (51, 412912), (68, 309684), (102, 206456), (131, 160752), (136, 154842), (197, 106896), (204, 103228), (262, 80376), (272, 77421), (393, 53584), (394, 53448), (408, 51614), (524, 40188), (591, 35632), (786, 26792), (788, 26724), (816, 25807), (1048, 20094), (1182, 17816), (1572, 13396), (1576, 13362), (2096, 10047), (2227, 9456), (2364, 8908), (3144, 6698), (3152, 6681), (3349, 6288), (4454, 4728)]